A T2 thread, also written T-2, has a diameter of 42mm and a thread pitch of 0.75mm. It is also sometimes written as M42x0.75.
The low pitch distinguishes it from other M42 threads.
Omegon
40mm T2i/T2a T2 extension ring
$ 24.90
ready for shipping in 24
h
Omegon
T2 extension tube - 30mm
$ 19.90
ready for shipping in 24
h
Omegon
7.5 mm T2i/T2a T2 extension ring
$ 19.90
ready for shipping in 24
h
Omegon
15mm T2i/T2a T2 extension ring
$ 24.90
ready for shipping in 24
h
Omegon
Extension tube Extender 30 mm T- thread
$ 29.90
ready for shipping in 24
h
ASToptics
T2 extension tube - 6mm long
$ 26.90
ready for shipping in 24
h
ASToptics
T2 extension tube - 9mm in length
$ 26.90
ready for shipping in 24
h
ASToptics
Extension tube T2 Fine tuning Kit - 0.5mm; 0.8mm; 1mm
$ 26.90
ready for shipping in 24
h
Baader
Extension tube Fine Tuning Ring Set T2 0.3 / 0.5 / 1mm
$ 22.90
ready for shipping in 1-2
weeks
ASToptics
T-Thread extension kit / 7mm
$ 55.00
ready for shipping in 24
h
TS Optics
T2 extension ring, optical path 20mm
$ 23.90
ready for shipping in 3-7
days
TS Optics
T2 extension ring, optical path 3mm
$ 22.90
ready for shipping in 3-7
days
TS Optics
T2 extension tube, 5mm optical path
$ 22.90
ready for shipping in 3-7
days
ASToptics
Extension tube T2 fine tuning ring - 1mm (aluminium)
$ 10.90
ready for shipping in 24
h
Baader
Extension tube VariLock 46 lockable T-2 29-46mm extender, with lock spanner
$ 80.00
ready for shipping in 1-2
weeks
ASToptics
Extension tube T2 fine-tuning ring - 0.5mm (aluminium)
$ 10.90
ready for shipping in 24
h
ASToptics
T2 extension tube - 7mm long
$ 21.90
ready for shipping in 24
h
ASToptics
T2 extension tube - 8mm long
$ 26.90
ready for shipping in 24
h
ASToptics
T2 extension tube - 4mm long
$ 21.90
ready for shipping in 24
h
Omegon
T-thread Extension and 2'' nosepiece 21mm
$ 19.90
ready for shipping in 24
h
TS Optics
Extension tube T2 10mm
$ 22.90
ready for shipping in 3-7
days
Baader
Extension tube Fine Tuning Ring Set T2
$ 20.90
ready for shipping in 1-2
weeks
Baader
Extension tube T2 40mm
$ 31.90
ready for shipping in 1-2
weeks
Celestron
Extension tube T2 Set
$ 78.00
ready for shipping in 1-2
weeks
Baader
Extension tube VariLock 29 lockable T-2 20-29mm extender, with lock spanner
$ 75.00
ready for shipping in 1-2
weeks
ASToptics
Extension tube T2 fine tuning ring - 2mm (aluminium)
$ 10.90
ready for shipping in 1-2
weeks
Omegon
Extension tube Extender 7 mm T-thread
$ 29.90
ready for shipping in 24
h
TS Optics
T2 spacer and extension tube, optical path 20.5 mm to 30mm
( 1 / 5 )
$ 36.90
ready for shipping in 3-7
days
Omegon
Extension tube Extender 17 mm T-thread
$ 29.90
ready for shipping in 24
h
TS Optics
T2 extension tube, 8mm optical path
$ 22.90
ready for shipping in 3-7
days
ASToptics
Extension tube T2 fine tuning ring - 0.3mm (aluminium)
$ 10.90
ready for shipping in 1-2
weeks
TS Optics
Extension tube T2 26mm extender
$ 23.90
ready for shipping in 3-7
days
TS Optics
Extension tube Fine Tuning Ring for T2-thread - thickness 0.5 mm
$ 16.90
ready for shipping in 3-7
days
Artesky
Extension tube T2 40mm
$ 22.90
ready for shipping in 3-7
days
Baader
Extension tube T-2 intermediate ring 7.5 mm T-2i/T-2a
$ 26.90
ready for shipping in 1-2
weeks
ASToptics
T2 Extension tube - 5mm long
$ 21.90
Product can be shipped as of 15.05.2025