Guan Sheng Telescopes

GSO factory-authorised factory-direct importer with a 2-year
factory-backed genuine Australian warranty!! Consider buying
GSO products sooner, rather than later, due to increasing parts
costs and increasing costs of sea freighting. GSO is an excellent manufacturer! GSO don't advise re availability of back-ordered products. Therefore, we simply re-order out-of-stock products!
We now only airmail to New Zealand, NOT air-courier/freight!
GSO products very rarely need to be placed on back-order!!
Australia's biggest and most trusted telescope discounter!

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The shop will close for our annual holiday from 4pm Tuesday, 19th December, 2023.
The shop will re-open at 9am Wednesday, 10th January, 2024!

PLENTY OF GSO TELESCOPES
& ACCESSORIES IN STOCK!

GSO's all-new 6"~10" f/12
Classical Cassegrain OTAs
are outstanding telescopes
...especially for planetary &
planetary nebula viewing!!

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Regarded as world's best quality telescopes at reasonable prices!
Yes, if you can find better telescopes at similar prices, go for it, hi!

WE ARE AUSTRALIA'S GENUINE TELESCOPE EXPERTS!

Please check with us a day prior if you wish to purchase a large telescope
personally from our store, so we can ensure it will be in our store for you.

PLEASE NOTE; SHOP HOURS ARE 9am~4pm, Monday~Friday!

Andrews Communications is Australia's leading GSO importer!
It's extremely rare for any GSO products to be back-ordered!
Guan Sheng products ship same day or next day from us!

We can't guarantee delivery times. We don't personally deliver.
Please order by phone; 02 9688 4301/9636 9060/9896 8972,
by email; radioandrews@hotmail.com or by mail;
P.O. Box 240, Pendle Hill, NSW, 2145.
Updated 24-11-23

Learn More

 

GSO super-high grade Dobsonians

BEYOND AMAZING VALUE...

Bonus Moon filter with all our GSO Dobsonians

New heavy duty tension-adjustable 8"~12" Dobsonians!

THREE (3) GSO Plossl eyepieces and SV30 30mm 2" eyepiece included with our 10" & 12" GSO Dobs!

Please check with us the day prior if you wish to purchase a large telescope
personally from our store, so we can ensure it will be in our store for you.

  BONUS SV30 30mm 2" eyepiece w/GSO 10"/12" Dobs!
 

OVER 46 YEARS OF DISCOUNTING!
 

Newest model!

Guan Sheng GS-580 6" f/8
150mm x 1200mm DOBSONIAN
with BONUS Moon filter!

FIRST-GRADE DOBSONIAN

SUPER DISCOUNTED!!

GS-580 A$399
(was A$499)

 PLENTY IN STOCK!

TWO GSO PLOSSL EYEPIECES!

First grade 6" (150mm x 1200mm) Dobsonian reflector with truly outstanding 1/12th surface wave specification BK7 mirrors.
Resolving power; 0.76 arc second.
Limiting magnitude; 12.0.

Includes a straight-thru 6 x 30 finderscope, 1.25" Crayford style focuser, a 35mm long 1.25" focal extension tube, the BONUS Moon filter and premium GSO 9mm and 25mm 1.25" Fully Multi Coated (FMC) Plossl eyepieces!

Yes, you may swap the BONUS Moon filter for a GSO ND (Neutral Density) filter of your choice at the time of the Dobsonian sale...

GSO Dobsonians have knurled collimation knobs fitted to their primary mirror cell. This new feature allows much easier and more precise adjustment of the mirror cell

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SHIPPING & INSURANCE NOTES

Insurance cover for goods in transit is available from us for only $2 per $100 value of goods. Please advise us if you require this option when ordering.

Please consider insurance because we are not responsible for loss of parcels or damage sustained by parcels as the carrier is responsible! We do pack well! If your order (e.g. telescope or binocular) is damaged in-transit by the freight company then you must claim on the freight company, not ourselves!!

Of course, if you have paid us for insurance then you simply claim on us. We are quick at resolving damage claims, compared to
many freight companies.

Please do NOT write <fragile> on anything you send to us as doing so greatly increases the risk of damage. Please try to "double-box" all products sent to us.

 

Newest model now in stock!

Guan Sheng GS-680 8" f/6 
200mm x 1200mm DOBSONIAN
with BONUS Moon filter!

FIRST-GRADE DOBSONIAN

GS-680 $899

 PLENTY IN STOCK!

Supplementary shipment here!

THREE GSO PLOSSL EYEPIECES!!

New adjustable tension design!

First grade 8" (200mm x 1200mm) Dobsonian reflector with truly outstanding 1/12th surface wave specification BK7 mirrors.
Resolving power; 0.58 arc second.
Limiting magnitude; 14.0.

Includes a right-angle correct image 8 x 50 finderscope, 2" dual-speed Crayford style microfocuser with 10:1 fine focusing, 2" to 1.25" adaptor, fan, a BONUS Moon filter and premium GSO 9mm, 15mm and 25mm 1.25" Fully Multi-Coated (FMC) Plossl eyepieces.

Yes, WE include three premium GSO Plossl FMC eyepieces, not just two! Above photo is indicative only.

Yes, you may swap the BONUS Moon filter for a GSO ND (Neutral Density) filter of your choice at the time of the Dobsonian sale...


 
Newest model features new larger smoothly-sculpted black plastic side bearing knobs for comfortably adjusting optical tube tension (our suggestion). Loosening these knobs also allows the optical tube to be slid forward or backward, so as to set the optimum balance point.     Discontinued/old model had sharp-edged aluminium adjustment knobs.  

Newest model GSO Dobsonians have knurled collimation knobs fitted to their primary mirror cell. This new feature allows much easier and more precise adjustment of the mirror cell
 

Newest model now in stock!

Guan Sheng GS-880 10" f/5
250mm x 1250mm DOBSONIAN with BONUS Moon filter!

FIRST-GRADE DOBSONIAN

GS-880 $1199

PLENTY IN STOCK!

THREE GSO PLOSSL EYEPIECES AND BONUS SV30 2" EYEPIECE!

BONUS SV30 2" EYEPIECE!

THREE GSO PLOSSL EYEPIECES AND BONUS SV30 2" EYEPIECE!

Competitor includes only 2 Plossls
(no 25mm Plossl) & SV30 eyepiece
New adjustable tension design!

First grade 10" (250mm x 1250mm) Dobsonian reflector with truly outstanding 1/12 surface wave BK7 mirrors and 2" focusers and 2" to 1.25" adaptors.
Resolving power; 0.49 arc second.
Limiting magnitude; 14.5.

Includes a right-angle correct image 8 x 50 finderscope, 2" dual-speed Crayford style microfocuser with 10:1 fine focusing, 2" to 1.25" adaptor, fan, a BONUS Moon filter and premium GSO 9mm, 15mm and 25mm 1.25" Fully Multi-Coated (FMC) Plossl eyepieces.

Yes, WE include three premium GSO Plossl FMC eyepieces (not 2) PLUS an SV30 30mm 2" eyepiece!!

Yes, you may swap the BONUS Moon filter for a GSO ND (Neutral Density) filter of your choice at the time of the Dobsonian sale...


  
Newest model features new larger smoothly-sculpted black plastic side bearing knobs for comfortably adjusting optical tube tension (our suggestion). Loosening these knobs also allows the optical tube to be slid forward or backward, so as to set the optimum balance point.     Discontinued/old model had sharp-edged aluminium adjustment knobs.
 
See photo of ASDX above!

Newest model GSO Dobsonians have knurled collimation knobs fitted to their primary mirror cell. This new feature allows much easier and more precise alignment of the mirror cell.

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The leaflet included in (twice- discontinued) GSO very old-style Dobsonian telescope base boxes showing thin needle roller bearings and steel sheets incorporated within a rotating base is out-of-date.
 
In place of those bearings and steel sheets, teflon pads are fitted to those (once-discontinued) Dobsonian telescopes' bases.

In place of those teflon pads, the very newest (current) Adjustable tension Super Deluxe (ASDX) GSO Dobsonians now have larger needle roller bearings, with their bases incorporating thicker steel plates!
 

Newest model now in stock!

Guan Sheng GS-980 12" f/5
300mm x 1500mm DOBSONIAN
with BONUS Moon filter!
FIRST-GRADE DOBSONIAN

GS-980 A$1699

PLENTY IN STOCK!

Supplementary shipment here!

THREE GSO PLOSSL EYEPIECES AND BONUS SV30 2" EYEPIECE!

BONUS SV30 2" EYEPIECE!

THREE GSO PLOSSL EYEPIECES AND BONUS SV30 2" EYEPIECE!

AND BONUS SV30 2" EYEPIECE!

Competitor includes only 2 Plossls
(no 25mm Plossl) & SV30 eyepiece
New adjustable tension design!

First grade 12" (300mm x 1500mm) Dobsonian reflector with truly outstanding 1/12 surface wave BK7 mirrors and 2" focusers and 2" to 1.25" adaptors.
Resolving power; 0.38 arc second.
Limiting magnitude; 14.9.

Includes a right-angle correct image 8 x 50 finderscope, 2" dual-speed Crayford style microfocuser with 10:1 fine focusing, 2" to 1.25" adaptor, fan, a BONUS Moon filter and premium GSO 9mm, 15mm and 25mm 1.25" Fully Multi-Coated (FMC) Plossl eyepieces.

Yes, WE include three premium GSO Plossl FMC eyepieces (not 2) PLUS an SV30 30mm 2" eyepiece!!

Yes, you may swap the BONUS Moon filter for a GSO ND (Neutral Density) filter of your choice at the time of the Dobsonian sale...

Newest model features new larger smoothly-sculpted black plastic side bearing knobs for comfortably adjusting optical tube tension (our suggestion). Loosening these knobs also allows the optical tube to be slid forward or backward, so as to set the optimum balance point.     Discontinued/old model had sharp-edged aluminium adjustment knobs.

See photo of ASDX above!

Newest model GSO Dobsonians have knurled collimation knobs fitted to their primary mirror cell. This new feature allows much easier and more precise alignment of the mirror cell.

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We supply excellent high-quality GSO telescopes at better-than-fantastic prices, along with a GSO factory-backed 2 year warranty.
We also offer our full after-sales service support to ensure you enjoy many years of happy observing.
You can certainly shop with greater confidence at Andrews! Est. 1976.

We have sold well over 3,000 GSO telescopes and consistently receive glowing reports regarding their truly outstanding performance! Compare!
 


Important notes re GSO mirrors...

GSO mirrors are guaranteed  diffraction limited. They achieve the theoretical limits of resolution for their respective surface areas.

GSO Newtonian Dobsonian telescopes have BK7 type glass paraboloidal mirrors and are precision figured and polished to an absolutely outstanding 1/12 (or better) surface wave specification!

I have witnessed this exacting and time consuming process numerous times, along with the confirming surface wave error printouts from GSO's three laser double-pass interferometers, during my many visits to the GSO factory in Taiwan.
Lee says most competitors don't visit any overseas factories, ever!

The high industry standard for mirror surface wave specification is 1/10 wave, yet very, very few telescope manufacturers regularly achieve it.

Due to continuing and dedicated quality improvements at GSO, more and more optical accessories from GSO are now achieving an amazing 1/16 surface wave spec.!
GSO guarantees no more than 1/12 surface wave error. Outstanding!
We know of no other manufacturer achieving such high quality levels at similar pricing...
 
OPTICAL DESIGN NOTES

Ritchey-Chretien astrographs are generally regarded as being the best design for astrophotography.

Ritchey-Chretien (RC) optical designs are generally regarded as being optically superior to Schmidt-Cassegrain (SCT) designs
and "edge" corrected SCTs due to their resulting flatter field.

  Schmidt-Cassegrain optical designs are generally regarded as being superior to Maksutov-Cassegrain designs due to their higher light transmission, etc.

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Prices are subject to change due to recent exchange rate variations.

Please remember that warranty may be void if you internally disassemble any telescope, regardless of model.
Customer-caused or environment-caused damage is not covered by warranty, of course!

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OUR SUGGESTIONS

GSO adopted all our suggestions re releasing right-angle correct-image finderscopes, standardising on f/5 focal ratio for large aperture GSO Dobsonians, upgrading to 2" focusers on all 8" and larger aperture GSO Newtonians, fitting larger diameter and smoothly-sculpted side tension knobs to Dobsonians, employing
extra heavy duty TPL tripod legs, standardising on white colour for
metal tube OTAs, fitting cut-foam inserts into accessory boxes and labelling all those boxes, etc., etc.
 


GSO RITCHEY-CHRETIEN DESIGN HIGH GRADE ASTROGRAPH
SUPER FLAT FIELD OTAs

 Ritchey-Chretien astrographs are generally regarded as being superior to ALL other telescope designs (inc "edge" corrected SCTs) for "flat-field" astrophotography!!

One 50mm & two 25mm focal extenders inc. with ALL OUR RCs!

GSO factory-backed Australian 2 year warranty!

 

OVER 46 YEARS OF DISCOUNTING!
 


RC-6, 6" f/9 metal OTA

RC-6" 150mm f/9 astrograph w/M-CRF focuser!
Newest model with metal tube.
Super-flat field!

RC-6...A$749

PLENTY IN STOCK!

Supplementary shipment arrived!

RC-6 6" has one Vixen style 1.75" dovetail fitted.
Includes one 50mm and two 25mm focal extender rings!
Resolution of 0.76 arc-sec. Weighs 5.9kg.

We recommend manual EQ3, EQ5 equatorial
mounts and computerised EQ3PRO, EQ5PRO
 (& up) equatorial mounts for use with RC-6".

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RC-8, 8" f/8 metal OTA

RC-8" 200mm f/8 astrograph w/M-LRS focuser!
Newest model with metal tube.
Super-flat field!

RC-8 A$1199

PLENTY IN STOCK!

RC-8 8" has two Vixen style 1.75" dovetails fitted.
(Dovetails shown in photo are NOT as supplied)
Includes one 50mm and two 25mm focal extender rings!
Resolution of 0.57 arc-sec. Weighs 8.5kg.

We recommend HEQ5PRO, AZ-EQ5-GT
& up computerised equatorial mounts
for use with RC-8" metal tube OTA.
 
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RC-8 8" f/8 Carbon Fibre OTA

 RC-8" 200mm f/8 C.F. astrograph w/M-LRS focuser!
Newest model with Carbon Fibre tube.
Super-flat field!

RC-8CF A$1749

PLENTY IN STOCK!

Supplementary shipment arrived!

RC-8CF 8" carbon fibre has one Vixen style 1.75" dovetail on top
and  one Losmandy "D" style 3" wide dovetail plate underneath.
The top Vixen dovetail bar is slightly different to the one shown.
Includes one 50mm and two 25mm focal extender rings!
Resolution of 0.57 arc-sec. Weighs 7.5kg.

 We recommend EQ5PRO, AZ-EQ5-GT
& up computerised equatorial mounts
for use with RC-8" carbon tube OTA.
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RC-12, 12" f/8 metal tube OTA
 RC-12" f/8 astrograph w/M-LRC focuser!
  Latest model! White steel tube!
 Super-flat field!

One only at...A$1999

YES, ONE IN STOCK!

RC-12 12" has two Losmandy "D" style 3" wide dovetail plates
fitted to its two tube rings; one on top and one underneath.
 Includes one 50mm and two 25mm focal extender rings!
Weighs 25kg., including its two tube rings
and two Losmandy style dovetail bars.
Photo for illustration purposes only.
Focuser is not a "floating" type.
Resolution of 0.38 arc-sec.
Price is negotiable...

We recommend Skywatcher CQ350, EQ8PRO
 or Celestron CGX or CGE computerised
equatorial mounts for RC-12 OTA.

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True breakthrough pricing for high-grade RC astrograph telescopes!
 Astrographs are telescopes designed primarily for astrophotography.
Most photos are courtesy of GSO. 

Special features of the newest RC-6" to RC-16" astrographs...

  • Ideal for astrophotography - due to virtually coma-free imaging!
  • True Ritchey-Chretien Cassegrain-type optics produce super flat field!
  • Flatter image compared to SCT and aplanatic/corrected SCT designs
  • Hyperbolic quartz primary and secondary mirrors with 99% reflectivity dielectric coatings for all RC 8", RC 10" and RC 12" models   
  • Carbon-fibre optical tubes have outstanding thermal stability
  • Crayford style large 2" 10:1 microfocuser on RC 8" astrographs
  • Crayford style LINEAR 3" 10:1 microfocuser on RC10"/12" astrographs
  • Laser etched focuser drawtube setting scale 
  • RC 6" has a metal tube, BK7 mirrors (not quartz), Crayford style 2" microfocuser, 40mm of microfocuser drawtube travel (not 50mm) and
    a Skywatcher/Vixen style full-length (32cm) dovetail bar
  • RC 8", 10" & 12" have long 50mm drawtube travel (not 40mm)
  • RC 10" and RC 12" models have upgraded/smoother/stronger stainless steel reinforced Crayford 3" LINEAR 10:1 microfocusers!
  • One 50mm and two 25mm focal extenders included with ALL OUR RCs
  • Collimation instructions may be found at Astro Tech in the USA...(?)
  • We will better any genuine competitor's genuine offer, if they have in stock exactly the same model w/same specifications and accessories!

 

OVER 46 YEARS OF DISCOUNTING!
 

All-new GSO f/12 CLASSICAL CASSEGRAIN OTAs deliver
extra-high magnification!

Compare to SCT designs...





New! GSO CC-6, CC-8 & CC-10A
Classical Cassegrain OTAs
enjoy truly glowing reviews!!

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GSO CC-6 6" f/12
6" f/12 Cassegrain

 CC-6 A$699

PLENTY IN STOCK!

Supplementary shipment arrived!

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GSO CC-8 8" f/12
8" f/12 Cassegrain

DISCOUNTED!!

CC-8 A$1499

(was A$1699)
IN STOCK!

Supplementary shipment arrived!

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GSO CC-10A 10" f/12
10" f/12, CC-10A, Serrurier
TRUSS Cassegrain...A$3999
SOLD OUT!

Please place your order with deposit! Deposit
requested only when GSO confirms availability

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Truly outstanding Cassegrains
...especially for planetary and
planetary nebula viewing!!
 

Ask "cosmologist" Luke for details!
Luke has a Bachelor of Astronomy
and Space Sciences & also a MSc.
 


GSO TRUE RITCHEY-CHRETIEN
TRUSS-TUBE SUPER-FLAT FIELD ASTROGRAPH OTAs

BEYOND AMAZING VALUE!

Ritchey-Chretien astrographs are regarded as being far superior to all other telescope designs (inc. "corrected" SCT designs) for "flat field" astrophotography!

GSO factory-backed Australian 2-year warranty!

 

OVER 46 YEARS OF DISCOUNTING!
 

GSO RC CARBON FIBRE TRUSS-TUBE ASTROGRAPHS

SUPER FLAT FIELD COMPARED TO
TRADITIONAL SCT OTA DESIGNS!


RC-10A 10" f/8 truss astrograph

 RC-10A 10" f/8 OTA w/M-LRC focuser!
New RC carbon fibre truss-tube astrograph.
 Super-flat field!

Resolution of 0.47' (arc-seconds). Weighs 15.7kg.
We recommend the Skywatcher EQ6R, AZ-EQ6 or CQ350
computerised equatorial mounts for use with RC-10A
10" truss tube OTA. OTA includes primary and
secondary mirror covers.

RC-10A...A$4499
IN STOCK!

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RC-12A 12" f/8 truss astrograph

 RC-12A 12" f/8 OTA w/M-LRC focuser!
New RC carbon fibre truss-tube astrograph.
  Super-flat field!

Resolution of 0.38' (arc-seconds). Weighs 23.7kg.
We recommend Skywatcher CQ350 or EQ8 computerised
equatorial mounts for use with RC-12A 12" truss tube
OTA. Includes primary and secondary mirror covers.

RC-12A...A$4999
IN STOCK!

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RC-14A 14" f/8 truss astrograph

RC-14A 14" f/8 OTA w/M-LRC focuser
**New lightweight primary mirror design**
RC carbon fibre truss-tube astrograph.
Super-flat field!

Resolution of 0.32' (arc-seconds). Weighs 30kg.
We recommend the Skywatcher CQ350 or EQ8
computerised equatorial mounts for use
with RC-14A 14" truss tube OTA.

RC-14A...A$7999
SOLD OUT!

 Place your order with deposit for inclusion
in our upcoming GSO sea freight shipment.
Price subject to change due to ex-GSO cost,
exchange rate & freight cost variations, etc.

New lightweight mirror design!

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RC-16A 16" f/8 truss astrograph
 
 RC-16A 16" f/8 astrograph w/M-LRC focuser
New RC carbon fibre truss-tube astrograph.
Super-flat field!
  
Resolution of 0.29' (arc-seconds). Weighs 37kg.
Requires a mount with a payload capacity of 45kg., minimum!
 We recommend the Skywatcher EQ8 computerised equatorial
mount for use with the RC-16A 16" truss tube OTA.

RC-16A 16" f/8
CF astrograph!

 RC-16A...$8999
SOLD OUT!

Place your order with deposit for inclusion
in our upcoming GSO sea freight shipment.
Price subject to change due to ex-GSO cost,
exchange rate & freight cost variations, etc.

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ALL OUR GSO RC TRUSS TUBE ASTROGRAPHS INCLUDE...

Newly upgraded heavy-duty 3" dual-speed (10:1)
LINEAR Crayford microfocuser!

Three (3) cooling fans, one 50mm and two 25mm focal
extension tubes and two Losmandy "D" style dovetails!
 
Hyperbolic quartz primary and secondary mirrors with 99% reflectivity dielectric coatings in all GSO RC truss tube models!
 


***NEW!!***

 GSO 10" & 12" f/4 Truss-tube
extra-high quality IMAGING
Newtonian reflector astrographs

BEYOND AMAZING VALUE...



 Truss-tube 10" f/4 now...A$3499
Place your order with deposit.
Model GS-800-NT
 

 New truss-tube 12" f/4...A$3999
Place your order with deposit.
Model GS-900-NT 

Carbon fibre Serrurier truss design with 2"/1.25" Crayford linear focuser, D-style dovetail bars
on top and bottom plus three cooling fans!
10" weighs ~17kg. 12" weighs ~23kg.
NT = Newtonian Truss design.

Above prices are subject to change due to
exchange rate and freight cost variations!

Extra-high quality GSO IMAGING
Newtonian reflector OTAs.

Ask us re suitable mounts...
 

New model with M-LRN focuser!

GS-600 M-LRN...A$799

New "fast" Newtonian 8" f/4 OTA

Plenty in stock!

 New model just arrived!
 
Model

Andrews price (AUD)

GS-550 "fast" imaging OTA!

6" 150mm f/4 with M-CRF microfocuser.

Imaging-optimised white OTA Newtonian reflector features a 2" Crayford style dual-speed 10:1 microfocuser with 1.25" adaptor, 6x30 finderscope, two tube rings and narrow 1.75"/45mm Vixen style dovetail bar.
(150mm x 600mm).

 Now has dual-speed 10:1 microfocuser

 GS-550 A$449


PLENTY IN STOCK!
 
GS-500 imaging OTA!

6" 150mm f/5, with M-CRF microfocuser.

Imaging-optimised white OTA Newtonian reflector features a 2" single-speed Crayford style focuser with 1.25" adaptor, 6x30 finderscope, two tube rings and narrow 1.75"/45mm Vixen style dovetail bar.
(150mm x 750mm).
 		 GS-500 A$399

PLENTY IN STOCK!
GS-530 superb imaging OTA!

6" 150mm f/6 with M-CRF microfocuser.

Imaging-optimised white OTA Newtonian reflector features a 2" Crayford style dual-speed 10:1 microfocuser with 1.25" adaptor, 6x30 finderscope, two tube rings and narrow 1.75"/45mm Vixen style dovetail bar.
(150mm x 900mm).

Now has dual-speed 10:1 microfocuser
 

 GS-530 A$399

PLENTY IN STOCK!
 
GS-600 "fast" imaging OTA!

8" 200mm f/4 with M-CRF microfocuser!

Imaging-optimised white OTA Newtonian reflector features a 2" Crayford style dual-speed 10:1 microfocuser with 1.25" adaptor, primary mirror cooling fan, 8x50 finderscope, two tube rings, narrow 1.75"/45mm Vixen style dovetail bar and large collimation knobs.
(200mm x 800mm).

Inc. new wide cast tube rings with guide scope mounting points.
Has 70mm (minor axis) secondary mirror.
 		  GS-600 A$699

IN STOCK!

 

GS-600 M-LRN "fast" imaging OTA!
8" 200mm f/4 with new M-LRN 2" microfocuser!

Imaging-optimised white OTA Newtonian reflector features GSO's heavy duty 2" LINEAR dual-speed 10:1 microfocuser with 1.25" adaptor, primary mirror cooling fan, 8x50 finderscope, two tube rings, narrow 1.75"/45mm Vixen style dovetail bar and large collimation knobs. (200mm x 800mm).
Above photo is for illustration purposes only.
Inc. new wide cast tube rings with guide scope mounting points.
Has 70mm (minor axis) secondary mirror.

  New!

GS-600
M-LRN A$799

PLENTY IN STOCK!

 
GS-630 8" f/5 Newtonian imaging OTA.

8" 200mm f/5 with 2" M-CRF microfocuser.
Imaging-optimised white OTA reflector features a 2" Crayford style dual-speed 10:1 microfocuser with 1.25" adaptor, primary mirror cooling fan, 8x50 finderscope, two tube rings, narrow 1.75"/45mm Vixen style dovetail bar and large collimation knobs.
(200mm x 1000mm).

Inc. new wide cast tube rings with guide scope mounting points
 		   GS-630 A$699

PLENTY IN STOCK!

 
GS-800 "fast" imaging OTA.

10" 250mm f/4 with 3" M-LRN microfocuser.

Imaging-optimised OTA reflector features GSO's extra-heavy duty 3" LINEAR dual-speed 10:1 microfocuser with 1.25" adaptor, primary mirror cooling fan, 8x50 finderscope, two tube rings, narrow 1.75"/45mm Vixen style dovetail bar and large collimation knobs.
(250mm x 1000mm).

Has strong and smooth 3" diameter linear focuser!  
Includes new, wide, cast tube rings with guide scope mounting points
 		   GS-800 A$899


IN STOCK!

Supplementary shipment here!

GS-830 imaging OTA.

10" 250mm f/5 with 2" M-CRF microfocuser.

Imaging-optimised OTA reflector features a 2" Crayford style dual-speed 10:1 microfocuser with 1.25" adaptor, primary mirror cooling fan, 8x50 finderscope, two tube rings, narrow 1.75"/45mm Vixen style dovetail bar and large collimation knobs.
(250mm x 1250mm).

Includes new, wide, cast tube rings with guide scope mounting points		 GS-830 A$849

IN STOCK!

Shipment here!
 
GS-900 "fast" imaging OTA.

12" 300mm f/4 with 3" M-LRN microfocuser.

Imaging-optimised OTA reflector features GSO's extra-heavy duty 3" LINEAR dual-speed 10:1 microfocuser with 1.25" adaptor, primary mirror cooling fan, 8x50 finderscope, two tube rings, 3"/75mm wide D style dovetail bar and large collimation knobs.
(300mm x 1200mm).

Has 88mm secondary mirror.
Has strong and smooth 3" diameter linear focuser! 
Includes new, wide, cast tube rings with guide scope mounting points

 GS-900 A$1199

 Limited stock!
 
GS-930 imaging OTA.

12" 300mm f/5 with 2" M-CRF microfocuser.

Imaging-optimised OTA reflector features a 2" Crayford style dual-speed 10:1 microfocuser with 1.25" adaptor, primary mirror cooling fan, 8x50 finderscope, two tube rings, 3"/75mm wide D style dovetail bar and large collimation knobs.
(300mm x 1500mm).

Includes new, wide, cast tube rings with guide scope mounting points

Discounted!

 GS-930 A$1099

Limited stock!

 Discounted!

 (was A$1199;
save A$100!)
 

GSO 16" Dobsonian telescope!



GSO GS-990 16" f/4.5 adjustable tension Dobsonian telescope!

P.O.A.
SOLD OUT!

This model is subject to availability
and price is subject to confirmation

Please place your order with deposit.

Compare to all other 16" Dobsonians...worldwide!

Unrivalled and unbelievable value...indeed!

BONUS SV30 30mm 2" eyepiece!

YOU ALSO GET FOUR (4) GSO PLOSSL EYEPIECES, TOO!!!!

New design GSO truss tube 16" aperture, 1800mm focal length Dobsonian delivers amazing views of deep space and represents outstanding value! 

  • Huge 16" f/4.5 primary mirror boasts superior 1/12 wave surface error
  • New, stronger roller bearing design with thicker steel panels
  • Unique new roller side bearings with adjustable tension/braking by way of extra large, knurled side knobs (our recommendation)!
  • Tube balance adjustment (fore and aft) of up to 25mm is possible
  • Strong 18-point primary mirror flotation cell - with a 4.7" cooling fan!
  • Easy assembly and disassembly of its heavy duty "TPL" truss tubes compared to complex 6-truss tube designs
  • Crayford style 2" 10:1 precision microfocuser with 1.25" adaptor
  • Oversized knurled collimation knobs allow easy mirror adjustment
  • Outstanding quality - overall! Black colour, not white!
  • No white reflective surfaces within the optical path in this design!
  • Features an achromatic 8 x 50 right-angle correct image finderscope
  • Limiting magnitude of 15.5 and resolving power of 0.29 arc seconds
  • You will see into deep space like you've never seen before...
  • Includes 2" 35mm eyepiece extension tube, 2" eyepiece accessory
    tray and GSO Premium 6mm, 9mm, 15mm and 25mm 1.25" Plossl eyepieces!! COMPARE!!
     

 


SHIPPING & INSURANCE NOTES

Insurance cover for goods in transit is available from us for only $2 per $100 value of goods. Please advise us if you require this option when ordering.

Please consider insurance because we are not responsible for loss of parcels or damage sustained by parcels as the carrier is responsible! We do pack well! If your order (e.g. telescope or binocular) is damaged in-transit by the freight company then you must claim on the freight company, not ourselves!!
Of course, if you have paid us for insurance then you simply claim on us. We are quick at resolving damage claims, compared to
many freight companies.

Please do NOT write <fragile> on anything you send to us as doing so greatly increases the risk of damage. Please try to "double-box" all products sent to us.

Images are for illustration purposes only and are not necessarily representative of any products.
Please ask us or search internet for photos and extra information.

Virtually all accessories are in stock!
 

OVER 46 YEARS OF DISCOUNTING!
 

GSO 1.25" Super Plossl eyepiece series

Super Plossl 1.25" eyepieces -> only A$49 each!
Type

Andrews price $(AUD)
6mm, 9mm, 12mm, 15mm, 20mm and 25mm GSO Super Plossls have 52° apparent field and have fully multicoated (FMC) optics.
(The bold type indicates plenty are in stock)


Note; Super Plossl eyepieces have greater than 50° apparent field.
 		  $49.00 ea.
  
 Plenty of most GSO Plossl eyepieces in stock!
32mm and 40mm Plossls have 45° apparent field and are fully multicoated (FMC) optics, too!  $59.00 ea.
Plenty in stock


OUTSTANDING GSO SUPERVIEW 68° EYEPIECES

 SV 1.25" eyepieces...only A$69 each

SV 2" eyepieces...only A$99 each



Outstanding performance and quality from GSO!
Type

Andrews price $(AUD)
SV 1.25"...SV 15mm (4-element) and SV 20mm (5-element).
Plenty in stock!

Supplementary shipment of SV 15mm 1.25" eyepieces here!

Note that the SV 15mm eyepiece won't accept screw-in filters!
 		 $69.00 ea.
Plenty in stock!
SV 2"...SV 30mm, SV 42mm and SV 50mm (50mm=60 deg. APFV)
All three 2" models are 5-element designs!

Plenty of SV30, SV42 & SV50 2" eyepieces in stock!
 		 $99.00 ea.
 
Plenty in stock!

GSO 2" 40mm Plossl eyepiece...A$49 each!
 
Type

Andrews
price $(AUD)
40mm - Four element 2" eyepiece with fully multicoated (FMC) optics.
New model! Great value!		 $49.00

Limited stock!

GSO 2.5x APO 1.25" BARLOWS...A$59 each

GSO 3x ED 1.25" BARLOWS...A$69 each

Guan Sheng genuine extra-high grade Barlows
Type

Andrews price $(AUD)
Barlow, 2x magnification, 1.25", fully multi-coated (FMC) optics,
2-element achromatic design.

 		 $49.00

Plenty in stock!
 Barlow, 2.5x magnification, 1.25", fully multi-coated (FMC) optics,
3-element apochromatic.

Highly recommended for use with most 1.25" telescopes!		 $59.00
Plenty in stock!
Barlow, 5x magnification, 1.25", fully multi-coated (FMC) optics,
3-element, apochromatic.

 		 $69.00

Plenty in stock!
Barlow, 1.25" ED (Extra low Dispersion), 3x magnification,
FMC optics, 2-element, semi-apochromatic.


  $69.00

Plenty in stock!
Barlow, 2" ED (Extra low Dispersion) 2x magnification, FMC optics, 2-element, achromatic. Includes 2" to 1.25" adaptor!

A truly outstanding 2" 2x Barlow lens!
 		   $99.00

 Plenty in stock!
 


Guan Sheng adjustable focus CAMERA projection lens

CSV 1.25" and 2" models...from only A$69 each!
Type

Andrews price $(AUD)
CSV-PL32, 32mm (CSV-PL), 1.25" $69.00
Plenty in stock
CSV-PL40, 40mm (CSV-PL), 1.25" $69.00
 Plenty in stock
CSV30, 30mm, 2".
Includes BONUS 2" to T2 thread adaptor!

 		 $99.00

Plenty in stock!
CSV42, 42mm, 2" Includes BONUS 2" to T2 thread adaptor! $99.00
Plenty in stock

Extra-high quality Guan Sheng accessories

BEYOND AMAZING VALUE...


GSO Coma corrector...A$149
 Plenty in stock!
 


NEW!
GSO 0.75x RC focal reducer...A$149
Designed for use ONLY with GSO RC OTAs!
Plenty in stock!

GSO 12" NEWTONIAN TUBE RINGS NOW IN STOCK...A$99/pair
 
Type

Andrews
price $(AUD)
Camera adaptor tube, 1.25", projection type. Model CA001.
Plenty in stock! 		$29.00
COMA CORRECTOR (CO-001). Proven ideal for 8", 10" and 12" Newtonians. Coma corrects SCTs well and improves their field of view, too! Customers report very impressive results. Notably improves visual performance of GSO RC telescopes, too. 2" f/4.
NOT for use with refractors!

This is a 3-part kit! 		$149.00

Plenty in stock!

Shipment here!
 
Focal reducer, 0.5x, 1.25" $39.00
Plenty in stock!
Extension tube (25mm long, 1.25", FF519), for above reducer $19.00
Focal reducer, 0.5x, 2" $79.00
Focal reducer, 0.75x, 2"...for GSO RC-only telescopes!!

Suitable only for GSO RC telescopes!		   $149.00

Plenty in stock!
Tube rings (pair); 230mm inside dia. (for GSO 8" Newtonians) $69.00/pair
Tube rings (pair); 303mm inside dia. (for GSO 10" Newtonians) $79.00/pair
Tube rings (pair); 358mm inside dia. (for GSO 12" Newtonians)  $99.00/pair

**EXCELLENT GSO EYEPIECE, FILTER & BARLOW KIT**

5 x Eyepieces, 6 x Filters + 1 x Barlow package...A$329

Compare to competitors' 1.25" starter kits containing
only 4 eyepieces, 4 filters and NO  Barlow!

PLENTY IN STOCK!

Supplementary shipment arrived!

(Total value of individual items is approximately A$450)

This EXCELLENT package includes superior grade 4mm, 6mm, 9mm, 15mm and 32mm focal length 1.25" diameter Plossl eyepieces (52 degrees AFV), one 2x 1.25" Barlow lens plus #12 Yellow, #21 Orange, #25 Red,
#56 Light green, #58A Green and #80A Blue 1.25" colour filters.

Photo is not of the actual kit. Photo is illustration only.


Guan Sheng extra-high grade diagonals from A$49 ea.

GSO 2" dielectric diagonals...A$179 each

GSO 2" QUARTZ diagonals...A$199 each
Type

Andrews price $(AUD)
Star diagonal, 90°, 1.25", BK7 mirror.
Latest version --> fitted with brass compression ring!		 $49.00
Dielectric mirror diagonal, 90°, 1.25".
Fitted with brass compression ring!

Has 99% reflectivity BK7 mirror and anodised aluminium body.

 		 $99.00
New model!

Plenty in stock!

 Shipment here!
45° 1.25" correct image diagonal.

See our Long Perng and Meade pages for similar diagonals!		  $49.00

Plenty in stock!
90° 1.25" correct image diagonal.  $59.00
Hybrid 1.25"/0.965" 90° correct image diagonal!
 


Availability subject to confirmation from GSO!

 $79.00
SOLD OUT!

Availability subject to confirmation from GSO!

Dielectric star diagonal, 2", 90°,  BK7, 99% reflectivity. Outstanding 1/12 surface wave specification
 		 $179.00

 

Dielectric SCT, star diagonal, 2", 90° (includes 1.25" adapt.), 99% reflectivity. Outstanding 1/12 surface wave specification
 		  $179.00

Plenty in stock!

Supplementary shipment here!

QUARTZ, star dia., 2", 90°, dielectric, 99% refl, 1/15 wave spec.
$199.00

Plenty in stock!

 Supplementary shipment here!

QUARTZ, SCT, star diagonal, 2", 90°, dielectric (includes 1.25" adaptor) 99% reflectivity and 1/15 surface wave specification
 		 $199.00

Plenty
in stock!

Supplementary shipment here!

Guan Sheng 2" diameter focal extension tubes

Only A$39 each!
Type

Andrews price $(AUD)
35mm extension, has brass compression ring --> FF113 $39.00

Plenty in stock!

Supplementary shipment here!
50mm extension, has brass compression ring --> FF114 $39.00

Plenty in stock!
 
80mm extension, has brass compression ring --> FF115 $39.00

Plenty in stock!

Supplementary shipment here!

 


Guan Sheng 8x50 finderscopes

From only A$69 each...
Type

Andrews price $(AUD)
Finderscope, 8 x 50 right angle correct image diagonal (white), complete with metal holder and metal dovetail block base!

 		 $99.00

Plenty in stock!

Supplementary shipment here!
Finderscope, 8 x 50 straight-through (white), complete with metal holder and metal dovetail block base.

 		 $69.00


Plenty in stock!
Finderscope metal holder and metal dovetail block base (for 8x50).

 		 $39.00

 Plenty in stock!
Finderscope metal dovetail block base only. Model AA085.

 		 $19.00

 Plenty in stock!

Guan Sheng CRAYFORD style RC "screw-on" 10:1
 
micro-focusers with 2" or 3" diameter drawtubes!

From only A$129 each...


 
Type

Andrews price $(AUD)
LRS Microfocuser - RC cassegrain design Crayford style, regular 2" drawtube diameter, 10:1 linear bearing, "screw-on" type of microfocuser.
Will screw onto compatible 90mm o.d. threaded tube.

Suits RC-6 6" and RC-8 8" GSO RC telescopes, etc.

Includes 2" to 1.25" adaptor. RC = Ritchey-Chretien.
Main body height is 63mm. Has 50mm of drawtube travel.
 		 $199.00
SOLD OUT!
 
Place your order
 
FF670-M-LRS Focuser collimating ring assembly. Suits RC-6 6" and RC-8 8", GSO RC telescopes, etc. $129

 Plenty in stock!

Shipment here!
Example of a GSO M-LRS composite collimating ring


Photo of a FF670-M-LRS composite collimating ring		  
LRC Microfocuser - RC cassegrain design Crayford style,
large 3" drawtube diameter, 10:1 linear bearing, "screw-on" type of microfocuser.
Will screw onto compatible 120mm o.d. threaded tube.

Suits RC-10 10" and RC-12 12" GSO RC telescopes, etc.
 
Includes 2" to 1.25" adaptor. RC = Ritchey-Chretien.
Main body height is 73mm. Has 50mm of drawtube travel.
 		 P.O.A.
 
FF672-M-LRS Focuser collimation ring assembly. Suits RC-10 10" and RC-12 12", GSO RC telescopes, etc. $129

Plenty in stock!

 

Guan Sheng CRAYFORD style 2" 10:1 micro-focusers


 
Type

Andrews price $(AUD)
M-CRF - Newtonian reflector type Crayford style 2" 10:1 microfocuser for 230mm o.d. tube, e.g. 8" Newtonians.
Main body height is 52mm. Has 35mm of drawtube travel

 $199.00
M-CRF - Newtonian reflector type Crayford style 2" 10:1 microfocuser for 303mm o.d. tube, e.g. 10" & 12" Newtonians.
Main body height is 52mm. Has 35mm of drawtube travel

 $199.00
M-LRN - Newtonian LINEAR bearing heavy-duty reflector type Crayford style 2" 10:1 microfocuser for 230mm o.d. tubes.

Suits 8" Newtonians.
$249.00

Plenty in stock!
M-LRN - Newtonian LINEAR bearing heavy-duty reflector type Crayford style 2" 10:1 microfocuser for 303mm o.d. tubes.

Suits 10" Newtonians.
$249.00
SOLD OUT!

Place your order
M-LST - SCT type Crayford style 2" LINEAR BEARING 10:1 microfocuser.

This new design has a smoother and 10cm longer housing!
 		 $299.00

Plenty in stock!

 
M-CRF series.

Refractor type 86mm size (suits 86mm i.d. of refractor tube) Crayford style 2" 10:1 microfocuser.

Has 78mm main body length and 72mm of drawtube travel
 Now...$249.00
(was A$269)

Plenty in stock!

Supplementary shipment here!
 M-CRF series.

Refractor type 96mm size (suits 96mm i.d. of refractor tube) Crayford style 2" 10:1 microfocuser.

Direct replacement for Skywatcher ED80 focuser!

 $279.00

Plenty in stock!
 
Refractor type 112mm size (suits 112mm i.d. of refractor tube) Crayford style 2" 10:1 microfocuser
 $249.00

Limited stock!


Guan Sheng ATZ telescope mount/dovetail/tripod.
We have all these ATZ products on order with GSO

Now A$369
Type

Andrews price $(AUD)
GSO SkyView ATZ heavy duty alt-azimuth aluminium mount has Vixen style dovetail adaptor (FF561), adjustable height aluminium tripod legs and one fine-control/slow motion line. Not A$399 here, hi!

GSO's ATZ is more stable and stronger than the S/W AZ3! 		 $369.00

Sold out!

This SkyView ATZ is on order with GSO
NEW! GSO ATZ Mk. II heavy duty alt-azimuth aluminium mount has Vixen style dovetail adaptor (FF561), adjustable height aluminium tripod legs and one fine-control/slow-motion line.
GSO's ATZ is more stable and stronger than the S/W AZ3!
Mk.II includes FF341 8.5" (21.6cm) long extension tube!
Sold out of FF341 extension fubes. 		$469.00

Sold out!

This ATZ Mk.II
is on order
with GSO
GSO SkyView FF341 8.5" (21.6cm) long extension tube, for use with ATZ mount. Sold out of FF341. $129.00

Sold out!

This FF341 is on
order with GSO
GSO Eyepiece tray. Suits ATZ tripod (EE048) $49.00
Limited stock!


Guan Sheng 1.25" special eyepiece filters from A$19 each


Nebula              OIII                UHC

GSO Nebula, OIII & UHC eyepiece filters.
 
Availability of these special filters will be
advertised here when confirmed by GSO
 
Type

Andrews price $(AUD)
Nebula filter - broadband, with light pollution and skyglow nulls.

Sold out! 		$79.00
Sold out!
 
Neutral density filter (ND96/AD083) D=0.3. Has 50% light transmission.

Plenty in stock!		 $19.00

Plenty in stock!
Neutral density filter (ND96/AD084) D=0.6. Has 25% light transmission.

Plenty in stock!
 		 $19.00

Plenty in stock!
Neutral density filter (ND96/AD085) D=0.9. Has 13% light transmission.

Plenty in stock!
 		 $19.00

Plenty in stock!
OIII filter - narrow band, ultra high contrast (UHC), has emission and planetary nebulae peaks; OIII and H-beta enhancement.
See General Accessories/Andrews page for more OIII filter options.
 		 $69.00

Sold out!
 
Polarising filter (AD086). You can use two polarising in series (i.e. stacked filters) to continuously adjust light transmission level

Plenty in stock!		 $19.00 ea.

Plenty in stock!
Skylight filter - SCT thread type. Limited or no stock  $19.00
UHC filter - narrowest passband of GSO filters, for best results when viewing ring nebulae and most planetary nebulae.
Passband centred at 500nm.
 		 $59.00

Sold out!
UV/IR blocking filter, 1.25" $29.00
Limited stock of some filters Call us for info


Guan Sheng 2" eyepiece colour filters

Only A$29 each

Type

Andrews price $(AUD)
#12 Yellow 2" filter (AD119) $29.00
#21 Orange 2" filter (AD124) $29.00
#25 Red 2" filter (AD121) $29.00
Plenty in stock!
#58A Dark green 2" filter (AD113) - Moon filter  $29.00
Plenty in stock!
#80A Medium blue 2" filter (AD116) $29.00
Plenty in stock!


Guan Sheng 1.25" eyepiece colour filters

Only A$22 each

Type

Andrews price $(AUD)
Moon filter (mid green in colour) (AD068)

Plenty in stock!		 $22.00
Plenty in stock!
#15 Dark yellow 1.25" filter $22.00
#25 Mid red filter 1.25" (AD059) $22.00
#80A Medium blue 1.25" (AD053).

Plenty in stock!		 $22.00
#82A Light blue filter 1.25" (AD054) $22.00


Guan Sheng special dovetail mount adaptor FF561
Now only...A$49
Type

Andrews price $(AUD)
NEW! Dovetail adaptor (black finish) has two all-metal thumbscrews.
The FF561 will provide very secure mounting of your telescope!

 		 $49.00


Plenty in stock


Guan Sheng SPECIAL adaptors - from only A$19 each!

FF146...2"/T2 adaptor...A$39

***************************************

NEW!

SC235 2" self-centreing adaptor
provides 35mm extension.
Now...A$49.

In stock!

***************************************

NEW!

SC125 Self-centreing 2" to 1.25" adaptor...A$49

Plenty in stock!

***************************************

M42 (T2) Spacer Set...A$59

Set includes 5mm, 10mm, 20mm, 30mm and
variable T-thread spacer with locking ring!

Plenty in stock!

M48 spacer sets are also in stock - see list below!
 
Type

Andrews price $(AUD)
FF006 - RC series 50mm extension tube x 1 (94mm o.d.) $29.00
Plenty in stock!
FF083 - RC series 25mm extension tubes x 2 (94mm o.d.) $29.00
Plenty in stock!
Dovetail bar kit. Complete with mounting brackets and screws.
Suits RC6 6" OTA.

 

 $79.00
Sold out!

Place your order for very early 2023 delivery
Dovetail bar kit. Complete with mounting brackets and screws.
Suits RC8 8" OTA.

Place your order with deposit when we confirm availability

 $79.00
Sold out!

Place your order
with deposit
FF145 - 2" to male T2 camera thread (outside) adaptor

 		 $39.00
Plenty in stock!

Supplementary shipment here!
FF146 - 2" barrel, male T2 outside thread with integrated 1.25" eyepiece holder and brass compression ring!
 		 $39.00
 Plenty in stock!
FF147 - 2" eyepiece holder for SCT telescopes $39.00
Plenty in stock!

Supplementary shipment here!
FF148 - Female T2 camera thread to 2" barrel Now $19.00
FF155 - 2" 40mm long extension tube w/male T2 camera thread $39.00
FF273 - Losmandy style universal dovetail bar. Suits many designs of tube rings. Bar weighs approximately 500g.
Includes mounting block saddles to suit GSO RC-8.
Overall bar dimensions are approximately 394mm long x 101mm wide

Plenty in stock!		 $48.00


Plenty in stock!
FF341 - 8.5" long strong extension tube for ATZ mount.
Subject to availability		 $119.00
   
M42 (T2) SPACER SET includes 5mm, 10mm, 20mm, 30mm and variable 42mm T-thread spacer with locking ring!
 		 $59.00
In stock!
M42 variable T-thread spacer with locking ring! (FF267/FF268)
As included in above "M42 spacer set"
 		 $19.00
Plenty in stock!
M42 Spacer, 5mm (FF269)
 		 $12.00 ea.
Plenty in stock!
M42 spacer, 10mm (FF270)
 		 $12.00 ea.
 Plenty in stock!
M42 spacer, 20mm (FF271)
 		 $12.00 ea.
 Plenty in stock!
M42 spacer, 30mm (FF272)
 		 $12.00 ea.
 Plenty in stock!
   
M48 SPACER SET includes 5mm, 10mm, 20mm, 30mm and variable 48mm T-thread spacer with locking ring!
 		 $59.00
Plenty in stock!
M48 variable T-thread spacer with locking ring! (FF358/FF359)
As included in above "M48 spacer set"
 		 $19.00
 Plenty in stock!
M48 Spacer, 5mm (FF360)
 		 $12.00 ea.
 Plenty in stock!
M48 spacer, 10mm (FF361)
 		 $12.00 ea.
Plenty in stock!
M48 spacer, 20mm (FF362)
 		 $12.00 ea.
Plenty in stock!
M48 spacer, 30mm (FF363)
 		 $12.00 ea.
Plenty in stock!
   
SC235 2" Self-centreing 35mm extension tube.
Has helical compression mechanism. Eliminates off-centreing issues which are common to simple single-side-screw designs.

Extension of 35mm is provided by this extension tube.

Threaded to accept standard 2" filters.

$49.00
In stock!
SC125 Self-centreing 2"-to-1.25" adaptor.
Has helical compression mechanism. Eliminates off-centreing issues which are common to simple single-side-screw designs.

Threaded to accept standard 2" filters. 		$59.00

Plenty in stock!
 

Guan Sheng Primary and Secondary mirrors!

Secondary mirrors from only A$89

 
Type

Andrews price $(AUD)
GSO PRIMARY MIRRORS (1/14th wave RMS typically)  
PRIMARY 8" f/6
PRIMARY 8" f/5
PRIMARY 8" f/4
PRIMARY 10" f/5
PRIMARY 10" f/4 (In-stock as at 22-11-21)
PRIMARY 12" f/5
PRIMARY 12" f/4
GSO SECONDARY MIRRORS (1/14th wave RMS typically)  
SECONDARY 50mm $89.00
SECONDARY 63mm $99.00
SECONDARY 70mm $119.00
SECONDARY 88mm (AD037) $189.00
GSO primary mirrors and some GSO secondary mirrors require pre-ordering. Listed prices are indicative and are subject to change (without notice or obligation) due to exchange rate variations.
GSO secondary mirrors in widths from 50mm to 88mm (as measured across their minor axis) are normally in stock.		  
Andrews Communications Systems
Shop 8, 41-51 Bathurst St, Greystanes, NSW 2145
Telephone: (02) 9636 9060, (02) 9688 4301, (02) 9896 8972