Skip to content

Astronomy Specialist

Search

Menu

BRANDS
TELESCOPES
- TELESCOPES
- ASTROGRAPHS
  
  CELESTRON
  
  PLANEWAVE
  
  SHARPSTAR
  
  SKY-WATCHER
  
  TAKAHASHI
- CASSEGRAIN
  
  BAADER
  
  CELESTRON
  
  SKY-WATCHER
- COMPUTERIZED
  
  CELESTRON
- DALL-KIRKHAM
  
  TAKAHASHI
  
  OFFICINA STELLARE
  
  PLANEWAVE CDK
  
  PLANEWAVE IRDK
- DOBSONIAN
  
  GEOPTIK
  
  SKY-WATCHER
  
  OPTIQUES FULLUM
- NEWTONIAN
  
  ARTESKY
  
  GSO
  
  SKY-WATCHER
- REFRACTORS
  
  ASKAR
  
  NAKOH
  
  TAKAHASHI
  
  SHARPSTAR
  
  SKY-WATCHER
  
  WILLIAM OPTICS
  
  ZWO
- RITCHEY-CHRETIEN
  
  GSO
  
  OFFICINA STELLARE
  
  PLANEWAVE
- SMART TELESCOPES
  
  DWARFLAB
  
  ZWO
- SOLAR
  
  BAADER
  
  DAYSTAR
  
  SKY-WATCHER
- SPOTTING SCOPES
  
  CELESTRON
BINOCULARS
- BINOCULARS
- BY SIZE
  
  UP TO 50MM
  
  70MM
  
  82MM
  
  100MM
  
  120MM
  
  150MM
- BY TYPE
  
  APO
  SEMI-APO
  
  ACHRO
- BY BRAND
  
  SKY ROVER
  
  WILLIAM OPTICS
MOUNTS
CAMERAS
ACCESSORIES
OBSERVATORIES
SPECIALS
TOOLS
ENGINEERING

TESTAR ADAPTERS

(11 products)

Sort by

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

Availability

In stock (9)
Out of stock (2)

Clear

Brand

Testar (11)

Clear

Price

From $

-

To $

From To

Clear

Threads

3.3" SC Female (1)
3.3" SC Male (1)
Esatto 3.5" LP (1)
M48 x 0.75 Female (1)
M68 x 1 Female (2)
M68 x 1 Male (2)
M72 x 1 Male (1)
M77 x 1 Male (1)
M81 x 1 Female (3)
M81 x 1 Male (1)
M82 x 1 Female (2)
M86 x 1 Male (1)
M114 x 1 Male (1)

Clear

Optical thickness

3 mm (1)
Optical thickness: 3 mm (1)
Optical thickness: 7.5 mm (1)
Optical thickness: 10 mm (1)
Optical thickness: 20 mm (1)
Optical thickness: 25 mm (1)

Clear

Compare

TESTAR ADAPTER ESATTO 2" - M48 FEMALE
In stock

Regular price $149.00AUD
Compare

TESTAR ESATTO 3" M81 EXTENSION 10mm
Very low stock (1 unit)

Regular price $99.00AUD
Compare

TESTAR ADAPTER FOR ESATTO 3" & SHARPSTAR 2.5" REDUCER
Backordered

Regular price $99.00AUD
Compare

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

Regular price $199.00AUD
Compare

TESTAR ADAPTER BETWEEN ESATTO 3.5" AND SHARPSTAR SCA260
In stock

Regular price $249.00AUD
Compare

TESTAR ADAPTER BETWEEN ESATTO 3.5" LP AND DELTA RHO 350
Very low stock (1 unit)

Regular price $479.00AUD
Compare

TESTAR ADAPTER BETWEEN ESATTO 4" AND PLANEWAVE CDK
Very low stock (1 unit)

Regular price $599.00AUD
Compare

TESTAR 3.3" SC EXTENSION 25mm
In stock

Regular price $99.00AUD
Compare

Sold out

TESTAR ADAPTER FOR GSO RC FOCUSER & SHARPSTAR REDUCER

Regular price $159.00AUD
Compare

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

Regular price $199.00AUD
Compare

TESTAR HELICAL FOCUSER FOR FINDERSCOPES
In stock

Regular price $159.00AUD

Your cart

Your cart is empty

Subtotal:$0.00AUD

Loading...

EXPLORE

About Us
Blog
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

© 2026 Testar Australia.

Compare /15

Loading...

Loading...