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

M42 ADAPTERS

(74 products)

We stock a huge range of M42 adapters, extension tubes, thread inverter rings, spacers, DSLR T-rings and Baader Click Lock adapters, Prima Luce Lab and ZWO adapters for connecting cameras and accessories to a wide variety of telescopes.

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 (67)
Out of stock (7)

Clear

Brand

Askar (1)
Baader Planetarium (34)
Celestron (1)
Prima Luce Lab (8)
QHYCCD (1)
Teleskop Service (2)
Testar (10)
ZWO (14)

Clear

Price

From $

-

To $

From To

Clear

Threads

1.375"-24 Female (1)
2.7"-24 Male (1)
1.25" Barrel (9)
2" Barrel (7)
2" SC Female (2)
2" SC Male (5)
CS (1)
M28.5 x 0.6 Female (2)
M42 Dovetail (2)
M42 Spacer (4)
M42 x 0.75 Female (33)
M42 x 0.75 Male (47)
M48 x 0.75 Female (7)
M48 x 0.75 Male (9)
M52 x 0.75 Male (1)
M54 x 0.75 Female (2)
M54 x 0.75 Male (4)
M56 x 1 Female (1)
M60 x 0.75 Male (1)
M68 x 1 Female (1)
M68 x 1 Male (3)

Clear

Optical thickness

0.5 mm (1)
Optical thickness: 0 mm (6)
Optical thickness: 0.3 - 1.0 mm (1)
Optical thickness: 0.5 mm (2)
Optical thickness: 0.7 mm (1)
Optical thickness: 0.8 mm (1)
Optical thickness: 1 mm (4)
Optical thickness: 1.5 mm (2)
Optical thickness: 2 mm (7)
Optical thickness: 2.5 mm (2)
Optical thickness: 3 mm (3)
Optical thickness: 4 mm (2)
Optical thickness: 5 mm (4)
Optical thickness: 5.5 mm (1)
Optical thickness: 6 mm (1)
Optical thickness: 7 mm (3)
Optical thickness: 7.5 - 40 mm (1)
Optical thickness: 8 mm (2)
Optical thickness: 9 mm (1)
Optical thickness: 9 - 24 mm (1)
Optical thickness: 9.50 - 10.25 mm (1)
Optical thickness: 10 mm (2)
Optical thickness: 11 mm (2)
Optical thickness: 11.5 mm (1)
Optical thickness: 12 - 16 mm (1)
Optical thickness: 13 mm (1)
Optical thickness: 14 mm (2)
Optical thickness: 15 - 18 mm (1)
Optical thickness: 16.5 mm (1)
Optical thickness: 17.5 mm (1)
Optical thickness: 20 - 29 mm (1)
Optical thickness: 20.5 - 30 mm (1)
Optical thickness: 21 mm (1)
Optical thickness: 22.5 mm (1)
Optical thickness: 23.5 mm (1)
Optical thickness: 26 mm (1)
Optical thickness: 29 mm (1)
Optical thickness: 29 - 35.5 mm (1)
Optical thickness: 29 - 46 mm (1)
Optical thickness: 31 mm (1)
Optical thickness: 32 - 38 mm (1)
Optical thickness: 36.5 mm (1)

Clear

Compare

ADAPTER 2" SC TO M42 MALE 8mm
In stock

Regular price $49.00AUD
Compare

ADAPTER M42 - 1.25"
In stock

Regular price $29.00AUD
Compare

ADAPTER M48 FEMALE TO M42 MALE 5-8mm
In stock

Regular price $29.00AUD
Compare

ADAPTER M48 MALE - M42 MALE 2mm
In stock

Regular price $29.00AUD
Compare

ADAPTER M52 MALE - M42 FEMALE 2mm
In stock

Regular price $59.00AUD
Compare

ADAPTER M54 FEMALE - M42 MALE 7mm
In stock

Regular price $59.00AUD
Compare

ADAPTER M54 MALE - M42 MALE 2mm
Very low stock (1 unit)

Regular price $85.00AUD
Compare

ADAPTER M54 MALE TO M42 FEMALE
In stock

Regular price $39.00AUD
Compare

ADAPTER M54 MALE TO M42 FEMALE 2mm

(1)

In stock

Regular price $49.00AUD
Compare

Sold out

ADAPTER M54 MALE TO M42 MALE 2mm

Regular price $59.00AUD
Compare

ADAPTER M68 MALE - M42 MALE 3mm
In stock

Regular price $89.00AUD
Compare

Sold out

ASKAR FMA180 M48-M42 ADAPTER

Regular price $29.00AUD
Compare

BAADER M42 FEMALE TO M42 FEMALE CONVERSION RING
Very low stock (1 unit)

Regular price $49.00AUD
Compare

Sold out

BAADER 1.25" / T2 NOSEPIECE

Regular price $49.00AUD
Compare

BAADER 1.25" CLICKLOCK M42 FEMALE

(1)

Very low stock (1 unit)

Regular price $149.00AUD
Compare

BAADER 1.25" NOSEPIECE - M42
In stock

Regular price $55.00AUD
Compare

BAADER 1.25" TO M42 EYEPIECE HOLDER
In stock

Regular price $35.00AUD
Compare

BAADER 2" CLICKLOCK M42 FEMALE
Very low stock (1 unit)

Regular price $169.00AUD
Compare

Sold out

BAADER 2" NOSEPIECE - M42 & M48

Regular price $79.00AUD
Compare

BAADER ADAPTER 2" SC FEMALE - M42 MALE 1.5mm
In stock

Regular price $59.00AUD
Compare

BAADER ADAPTER 2" SC MALE - M42 FEMALE
In stock

Regular price $49.00AUD
Compare

BAADER ADAPTER 2" SC MALE - T2 (M42) MALE
Very low stock (1 unit)

Regular price $69.00AUD
Compare

BAADER ADAPTER 2" to 1.25" WITH T2 THREAD
In stock

Regular price $79.00AUD
Compare

BAADER ADAPTER M42 FEMALE TO 2" SC MALE 1mm
In stock

Regular price $45.00AUD
Compare

BAADER ADAPTER M42 MALE - M42 MALE WITH 1.25" FILTER THREAD
In stock

Regular price $59.00AUD
Compare

BAADER ADAPTER M48 FEMALE - M42 MALE
In stock

Regular price $55.00AUD
Compare

BAADER ADAPTER M48 MALE - M42 FEMALE

(1)

Very low stock (1 unit)

Regular price $45.00AUD
Compare

BAADER ADAPTER M48 MALE - M42 MALE
In stock

Regular price $55.00AUD
Compare

BAADER ADAPTER M48 MALE TO M42 FEMALE 2.5mm
In stock

Regular price $39.00AUD
Compare

BAADER ADAPTER M54 FEMALE - M42 MALE
In stock

Regular price $65.00AUD
Compare

BAADER ADAPTER M68 MALE - T2 (M42) MALE
In stock

Regular price $119.00AUD
Compare

BAADER FOCUSING EYEPIECE HOLDER 1.25" / M42
In stock

Regular price $79.00AUD
Compare

BAADER FOUR-IN-ONE ADAPTER M68/T-2/M68
Very low stock (1 unit)

Regular price $179.00AUD
Compare

BAADER M42 (T2) EXTENSION TUBE
In stock

Regular price From $39.00AUD
Compare

BAADER M42 (T2) SPACER RING SET

(2)

In stock

Regular price $25.00AUD
Compare

BAADER M42 (T2) SPACER RINGS
In stock

Regular price From $13.00AUD
Compare

BAADER M42 (T2) TILTER
Very low stock (1 unit)

Regular price $319.00AUD
Compare

BAADER M42 MALE - M42 MALE CONVERSION RING
In stock

Regular price $55.00AUD
Compare

BAADER NX4 / ETX UNIVERSAL PHOTO-T ADAPTER

(1)

Very low stock (1 unit)

Regular price $95.00AUD
Compare

BAADER PUSHFIX ADAPTER 2" - 1.25"
In stock

Regular price $89.00AUD
Compare

BAADER STEEL T2 QUICK CHANGE RING

(1)

In stock

Regular price $85.00AUD
Compare

BAADER T2 FOCAL ADAPTER FOR 2" RECEPTACLE
In stock

Regular price $69.00AUD
Compare

BAADER TQC HEAVY DUTY T-2 QUICK CHANGER

(1)

In stock

Regular price $139.00AUD
Compare

BAADER VARIABLE M42 (T2) EXTENSION 12-16 mm
In stock

Regular price $79.00AUD
Compare

BAADER VARILOCK 29 - M42 (T2) EXTENSION 20-29 mm
In stock

Regular price $119.00AUD
Compare

BAADER VARILOCK 46 - M42 (T2) EXTENSION 29-46 mm
In stock

Regular price $129.00AUD
Compare

CELESTRON T-ADAPTER FOR NEXSTAR 4, C90 MAK & C130 MAK
In stock

Regular price $39.00AUD
Compare

M42 CAMERA ROTATOR
Very low stock (1 unit)

Regular price $100.00AUD
Compare

M42 VARIABLE EXTENSION 15 - 18mm
Very low stock (1 unit)

Regular price $159.00AUD
Compare

Sold out

M42 VARIABLE EXTENSION 20.5 - 30mm

Regular price $49.00AUD

Showing 50 of 74

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...