Skip to content

Astronomy Specialist

Search

Menu

BRANDS
TELESCOPES
- TELESCOPES
- ASTROGRAPHS
  
  CELESTRON
  
  OFFICINA STELLARE
  
  PLANEWAVE
  
  SHARPSTAR
  
  SKY-WATCHER
  
  TAKAHASHI
- BINOCULARS
  
  APM
  
  CELESTRON
- CASSEGRAIN
  
  BAADER
  
  CELESTRON
  
  SKY-WATCHER
- COMPUTERIZED
  
  CELESTRON
- DALL-KIRKHAM
  
  TAKAHASHI
  
  OFFICINA STELLARE
  
  PLANEWAVE
- DOBSONIAN
  
  GEOPTIK
  
  SKY-WATCHER
  
  OPTIQUES FULLUM
- NEWTONIAN
  
  ARTESKY
  
  GSO
  
  SAXON
  
  SKY-WATCHER
- REFRACTORS
  
  ASKAR
  
  APM
  
  TAKAHASHI
  
  SHARPSTAR
  
  SKY-WATCHER
  
  WILLIAM OPTICS
  
  ZWO
- RITCHEY-CHRETIEN
  
  GSO
  
  OFFICINA STELLARE
  
  PLANEWAVE
- SMART TELESCOPES
  
  UNISTELLAR
  
  ZWO SEESTAR
- SOLAR
  
  BAADER
  
  DAYSTAR
  
  SKY-WATCHER
- SPOTTING SCOPES
  
  CELESTRON
MOUNTS
CAMERAS
ACCESSORIES
OBSERVATORIES
SPECIALS
BLOG
ABOUT US
ENGINEERING

ACCESSORIES

(1112 products)

Sort by

Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

Compare

View as List Grid

FiltersFilter & Sort

Applied Filters

Clear all

Sort by

Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

Brand

Clear

Availability

In stock (856)
Out of stock (301)

Clear

Price

From $

-

To $

From To

Clear

Threads

Clear

Optical thickness

0 mm (1)
0.5 mm (1)
1.5 mm (1)
3 mm (1)
5 mm (1)
10 mm (2)
30 mm (1)
32 mm (1)
Optical thickness 7.3 mm (1)
Optical thickness: 0 mm (11)
Optical thickness: 0.1 mm (1)
Optical thickness: 0.15 mm (1)
Optical thickness: 0.15 - 1 mm (1)
Optical thickness: 0.2 mm (1)
Optical thickness: 0.3 mm (2)
Optical thickness: 0.4 mm (1)
Optical thickness: 0.5 mm (4)
Optical thickness: 0.5 - 13.5 mm (1)
Optical thickness: 0.6 mm (1)
Optical thickness: 0.7 mm (1)
Optical thickness: 0.8 mm (1)
Optical thickness: 1 mm (10)
Optical thickness: 1.5 mm (1)
Optical thickness: 2 mm (16)
Optical thickness: 2.5 mm (4)
Optical thickness: 3 mm (9)
Optical thickness: 3.5 mm (2)
Optical thickness: 4 mm (4)
Optical thickness: 4.3 mm (1)
Optical thickness: 4.5 mm (1)
Optical thickness: 5 mm (15)
Optical thickness: 5.5 mm (2)
Optical thickness: 6 mm (4)
Optical thickness: 6.5 mm (1)
Optical thickness: 7 mm (9)
Optical thickness: 7.5 mm (1)
Optical thickness: 8 mm (8)
Optical thickness: 8.3 mm (2)
Optical thickness: 8.5 mm (1)
Optical thickness: 9 mm (6)
Optical thickness: 9.5 mm (1)
Optical thickness: 9.50 - 10.25 mm (3)
Optical thickness: 9.7 mm (1)
Optical thickness: 9.75 - 10.50 mm (1)
Optical thickness: 10 mm (9)
Optical thickness: 10.5 mm (1)
Optical thickness: 10.6 mm (1)
Optical thickness: 10.8 mm (1)
Optical thickness: 11 mm (5)
Optical thickness: 11.4 mm (1)
Optical thickness: 11.5 mm (2)
Optical thickness: 12 mm (1)
Optical thickness: 12.5 mm (5)
Optical thickness: 12.7 mm (1)
Optical thickness: 13 mm (3)
Optical thickness: 13.5 mm (1)
Optical thickness: 14 mm (3)
Optical thickness: 14 mm, 20 mm (1)
Optical thickness: 15 mm (7)
Optical thickness: 15 - 18 mm (4)
Optical thickness: 15 - 20 mm (1)
Optical thickness: 16.2 mm (1)
Optical thickness: 16.5 mm (1)
Optical thickness: 17.5 mm (1)
Optical thickness: 18.8 mm (1)
Optical thickness: 19 mm (1)
Optical thickness: 20 mm (3)
Optical thickness: 21 mm (2)
Optical thickness: 22.5 mm (1)
Optical thickness: 25 mm (3)
Optical thickness: 26 mm (1)
Optical thickness: 26.5 mm (1)
Optical thickness: 28 mm (2)
Optical thickness: 29 mm (2)
Optical thickness: 29 - 35.5 mm (1)
Optical thickness: 31 mm (1)
Optical thickness: 31.3 mm (1)
Optical thickness: 34.5 mm (1)
Optical thickness: 35 mm (2)
Optical thickness: 37 mm (2)
Optical thickness: 38.5 mm (3)
Optical thickness: 39.5 mm (1)
Optical thickness: 40 mm (1)
Optical thickness: 41.5 mm (1)
Optical thickness: 48.5 mm (1)
Optical thickness: 50 mm (2)
Optical thickness: 52 mm (1)
Optical thickness: 53 mm (1)
Optical thickness: 55 mm, 59 mm (1)
Optical thickness: 64 mm (1)
Optical thickness: 65 mm (1)
Optical thickness: 85 mm (1)
Optical thickness: 99 mm (1)
Optical thickness: 99 mm (2" barrel) (1)
Optical thickness: 100 mm (1)
Optical thickness: 109 mm (1.25" barrel) (1)
Optical thickness: 112 mm (2)
Optical thickness: 121 mm (2" barrel) (1)
Optical thickness: 131 mm (1.25" barrel) (1)
Optical thickness: -65.5 mm (1)

Clear

Aperture

30 mm (1)
32 mm (2)
48 mm (1)
50 mm (1)
50mm (1)
60 mm (1)
61 mm (1)

Clear

Optical design

Achromatic Doublet (1)
Amici erecting prism (3)
Aspheric (2)
Barlow (7)
Doublet (6)
Flatfield Barlow (1)
Mirror diagonal (2)
Modular (10)
Orthoscopic (3)
Plössl (1)
Plössl, Orthoscopic, Barlow (1)
Prism star diagonal (2)
Telecentric Barlow (2)
TOE (6)
TPL (3)
Wide angle (6)

Clear

Focal length

Clear

Focal ratio

F4.1 (1)
f/3.75 (1)
f/4 (3)
f/5 (1)

Clear

Mount type

Alt-Azimuth (1)
Equatorial (1)

Clear

Payload capacity

5 kg (1)
80 kg (1)
200 kg (1)
13 kg with counterweight (1)
8 kg without counterweight (1)
≤2.5 Nm (5kg) (1)

Clear

Encoders

Encoders: None (2)

Clear

Counterweight shaft

16 mm (4)
18 mm (2)
20 mm (6)
25 mm (8)
28 mm (3)
30 mm (3)
31.5 mm (1)
32 mm (7)
38.1 mm (1)
40 mm (2)
50 mm (1)
60 mm (1)

Clear

Bit depth

12-bit (12)
14-bit (5)
16-bit (5)

Clear

Pixel size

1.45 µm (1)
2.0 µm (2)
2.9 µm (6)
3.75 µm (1)
3.76 µm (7)
4.0 µm (2)
4.63 µm (2)
5.94 µm (1)

Clear

Resolution

1280 x 960 (1)
1920 x 1080 (7)
3008 x 3008 (2)
3840 x 2160 (4)
4128 x 2808 (2)
6064 x 4040 (1)
6224 x 4168 (3)
9568 x 6380 (2)

Clear

Quantum efficiency

75% (1)
80% (8)
81% (2)
83% (2)
89% (2)
90% (2)
91% (3)
92% (2)

Clear

Sensor diagonal

6.14 mm (1)
6.39 mm (5)
6.45 mm (1)
8.47 mm (2)
8.81 mm (2)
12.84 mm (1)
15.97 mm (2)
23.1 mm (2)
28.3 mm (3)
43.3 mm (3)

Clear

FPS

6.2 FPS (2)
13.3 FPS (3)
15.2 FPS (1)
17.8 FPS (1)
18 FPS (2)
30 FPS (1)
33 FPS (2)
40 FPS (2)
47 FPS (4)
150 FPS (2)
152 FPS (2)

Clear

Filter size

1.25" (8)
2" (6)
31 mm (4)
36 mm (3)
46 mm (2)
50 mm x 50 mm square (1)
50 mm round (2)

Clear

Bandpass (FWHM)

3 nm (1)
3.5 nm (1)
7 nm (2)

Clear

Apparent FOV

40 - 60° (1)
44° (1)
48° (6)
48 - 68° (1)
50° (8)
52° (3)
56° (3)
58° (3)
60° (6)
65° (6)
66 - 67° (1)
68° (9)
70° (1)
72° (2)
75° (1)
76° (6)
80° (1)
82° (6)
84° (1)

Clear

Barrel size

1.25" (67)
2" (35)

Clear

Colour or Monochrome

Colour (11)
Monochrome (11)

Clear

Cooled

Cooled (11)
Non-cooled (11)

Clear

Compare

TAKAHASHI REDUCER 0.72x FOR FS-60CB
Very low stock (1 unit)

Regular price $1,199^00AUD

View details
Compare

TAKAHASHI REDUCER-CR 0.73x

Regular price $1,459^00AUD

View details
Compare

TAKAHASHI TOA-35 FLATTENER

Regular price $969^00AUD

View details
Compare

TAKAHASHI TOA-35 REDUCER
Very low stock (1 unit)

Regular price $2,259^00AUD

View details
Compare

TAKAHASHI TOA-35 REDUCER FOR TSA-120 & TOA-150B

Regular price $2,259^00AUD

View details
Compare

TAKAHASHI TOA-645 FLATTENER FOR TOA-130

Regular price $1,499^00AUD

View details
Compare

TAKAHASHI TOA-645 FLATTENER FOR TOA-150B

Regular price $1,599^00AUD

View details
Compare

TAKAHASHI TOE 52° EYEPIECE 2.5mm
Very low stock (1 unit)

Regular price $649^00AUD

View details
Compare

TAKAHASHI TOE 52° EYEPIECE 3.3mm
Very low stock (1 unit)

Regular price $649^00AUD

View details
Compare

TAKAHASHI TOE 52° EYEPIECE 4mm

(1)

Very low stock (1 unit)

Regular price $599^00AUD

View details
Compare

TAKAHASHI TOE 58° EYEPIECE 10mm
In stock

Regular price $649^00AUD

View details
Compare

TAKAHASHI TOE 58° EYEPIECE 5.5mm
In stock

Regular price $649^00AUD

View details
Compare

TAKAHASHI TOE 58° EYEPIECE 7.5mm
In stock

Regular price $649^00AUD

View details
Compare

TAKAHASHI TPL EYEPIECE 12.5mm
In stock

Regular price $379^00AUD

View details
Compare

TAKAHASHI TPL EYEPIECE 18mm
In stock

Regular price $379^00AUD

View details
Compare

TAKAHASHI TPL EYEPIECE 25mm

(1)

In stock

Regular price $399^00AUD

View details
Compare

TAKAHASHI TPL EYEPIECE 33mm
Very low stock (1 unit)

Regular price $599^00AUD

View details
Compare

TAKAHASHI TPL EYEPIECE 50mm
Very low stock (1 unit)

Regular price $1,199^00AUD

View details
Compare

TAKAHASHI TPL EYEPIECE 6mm
Very low stock (1 unit)

Regular price $369^00AUD

View details
Compare

TAKAHASHI TPL EYEPIECE 9mm
In stock

Regular price $369^00AUD

View details
Compare

TAKAHASHI VISUAL COUPLING S TKP00103

Regular price $99^00AUD

View details
Compare

TELRAD FINDER & MOUNTING BASE
In stock

Regular price $79^00AUD

View details
Compare

TESTAR 3.3" SC EXTENSION 25mm
In stock

Regular price $99^00AUD

View details
Compare

TESTAR ADAPTER BETWEEN ESATTO 3.5" LP AND DELTA RHO 350
In stock

Regular price $479^00AUD

View details
Compare

TESTAR ADAPTER BETWEEN ESATTO 4" AND PLANEWAVE CDK

Regular price $599^00AUD

View details
Compare

TESTAR ADAPTER ESATTO 2" - M48 FEMALE
In stock

Regular price $149^00AUD

View details
Compare

TESTAR ADAPTER FOR ESATTO 3" & SHARPSTAR 2.5" REDUCER

Regular price $99^00AUD

Contact Us
Compare

TESTAR ADAPTER FOR ESATTO 3" AND ESPRIT 120 / 150 REDUCER
Very low stock (1 unit)

Regular price $199^00AUD

View details
Compare

TESTAR ADAPTER FOR GSO RC FOCUSER & SHARPSTAR REDUCER
In stock

Regular price $159^00AUD

View details
Compare

TESTAR ADAPTER M72 - APM RIFLAT1 FLATTENER
Very low stock (1 unit)

Regular price $199^00AUD

View details
Compare

TESTAR DEW HEATER REGULATOR
In stock

Regular price $39^00AUD

View details
Compare

TESTAR ESATTO 3" M81 EXTENSION 10mm
In stock

Regular price $99^00AUD

View details
Compare

TESTAR HELICAL FOCUSER FOR FINDERSCOPES
In stock

Regular price $159^00AUD

View details
Compare

TESTAR PIER ADAPTER FLANGE FOR CEM120
In stock

Regular price $199^00AUD

View details
Compare

TESTAR PIER ADAPTER FLANGE FOR CGX-L

Regular price $329^00AUD

View details
Compare

TESTAR PIER ADAPTER FLANGE FOR EQ8 & CQ350

(1)

In stock

Regular price $249^00AUD

View details
Compare

TESTAR PIER ADAPTER FLANGE FOR GM2000
In stock

Regular price $229^00AUD

Contact Us
Compare

TESTAR PIER ADAPTER FLANGE FOR ZWO & WARPASTRON MOUNTS
In stock

Regular price $199^00AUD

View details
Compare

TESTAR PIER EXTENSION FOR SHARPSTAR MARK III

Regular price $399^00AUD

Contact Us
Compare

TESTAR TRIPOD ADAPTER FOR SHARPSTAR MARK III MOUNT

Regular price $199^00AUD

Contact Us
Compare

TESTAR UNIVERSAL MOUNT ADAPTER FOR EQ8 PIER TRIPOD

Regular price $249^00AUD

View details
Compare

33% off

TOUPTEK AAF ELECTRONIC AUTOFOCUSER
Very low stock (1 unit)

Sale price $199^00AUD Regular price $299⁰⁰

View details
Compare

27% off

TOUPTEK AFW ELECTRONIC FILTER WHEEL 5 x 2"
In stock

Sale price $329^00AUD Regular price $449⁰⁰

View details
Compare

20% off

TOUPTEK AFW ELECTRONIC FILTER WHEEL 7 x 2"

Sale price $399^00AUD Regular price $499⁰⁰

View details
Compare

27% off

TOUPTEK AFW ELECTRONIC FILTER WHEEL 7 x 36mm
In stock

Sale price $329^00AUD Regular price $449⁰⁰

View details
Compare

27% off

TOUPTEK AFW ELECTRONIC FILTER WHEEL 8 X 1.25"

Sale price $329^00AUD Regular price $449⁰⁰

View details
Compare

FREE SHIPPING
15% off

TOUPTEK ATR 2600C PRO COOLED CAMERA [COLOUR]

Sale price $2,199^00AUD Regular price $2,599⁰⁰

View details
Compare

FREE SHIPPING
16% off

TOUPTEK ATR 2600M PRO COOLED CAMERA [MONO]
In stock

Sale price $2,849^00AUD Regular price $3,399⁰⁰

View details
Compare

FREE SHIPPING
Up to 12% off

TOUPTEK ATR 2600M PRO IMAGING KIT
In stock

Sale price From $4,649^00AUD Regular price $5,299⁰⁰

View details
Compare

FREE SHIPPING
15% off

TOUPTEK ATR 294C PRO COOLED CAMERA [COLOUR]

Sale price $1,149^00AUD Regular price $1,349⁰⁰

Contact Us

Showing 950 of 1112

Your cart

Your cart is empty

Subtotal:$0^00AUD

Loading...

EXPLORE

Terms of Service
Refund Policy
Shipping Policy
Privacy Policy
Quick Order

NEWSLETTER

Join our mailing list for updates, exclusive offers and astronomy news.

Email

CONTACT

Phone: 02 83281234

Mon - Fri 10:00 - 17:30, Sat 10:00 - 14:00

33/1-5 Thew Parade, Cromer, 2099, NSW Australia.

Drop us an email

Facebook
YouTube
Instagram

Payment methods accepted

Country/Region

Australia (AUD $)

© 2025 Testar Australia.

Compare /15

Loading...

Loading...

Choose options

Item added to your cart.

View cart