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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.

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Omegon Camera adaptor T2-Ring compatible with Canon EOS
Omegon
Camera adaptor T2-Ring compatible with Canon EOS
( 4 / 5 )
$ 19.90
ready for shipping in 24 h
Omegon Camera adaptor T2-Ring für Nikon
Omegon
Camera adaptor T2-Ring für Nikon
$ 19.90
ready for shipping in 24 h
Omegon Adapter T2 male to T2 male
Omegon
Adapter T2 male to T2 male
$ 19.90
ready for shipping in 24 h
Celestron Camera adaptor T2-Ring for Nikon
Celestron
Camera adaptor T2-Ring for Nikon
$ 31.90
ready for shipping in 24 h
Omegon T2 ring for Minolta AF and Sony A-Mount cameras
Omegon
T2 ring for Minolta AF and Sony A-Mount cameras
$ 29.90
ready for shipping in 24 h
Bresser Camera adaptor T2 ring compatible with Canon EOS R/RP Wide-T
Bresser
Camera adaptor T2 ring compatible with Canon EOS R/RP Wide-T
$ 26.90
ready for shipping in 24 h
Omegon Adapter M48 male  to T-thead ring female
Omegon
Adapter M48 male to T-thead ring female
$ 24.90
ready for shipping in 24 h
ASToptics Camera adaptor T-RING FOR OLYMPUS (FOUR THIRDS)
ASToptics
Camera adaptor T-RING FOR OLYMPUS (FOUR THIRDS)
$ 21.90
ready for shipping in 24 h
Omegon Adaptors 1.25'', 30mm extension tube
Omegon
Adaptors 1.25'', 30mm extension tube
$ 24.90
ready for shipping in 24 h
Celestron Camera adaptor T2 ring for Canon EOS and ZenithStar 71/61 field flattener
Celestron
Camera adaptor T2 ring for Canon EOS and ZenithStar 71/61 field flattener
$ 31.90
ready for shipping in 24 h
Omegon Adapter T2 male to c-mount male
Omegon
Adapter T2 male to c-mount male
$ 34.90
ready for shipping in 24 h
Omegon C-mount male to T2 adapter female
Omegon
C-mount male to T2 adapter female
$ 24.90
ready for shipping in 24 h
ASToptics Camera adaptor Sony Nex / E-mount T2 adapter
ASToptics
Camera adaptor Sony Nex / E-mount T2 adapter
$ 32.90
ready for shipping in 24 h
ASToptics Nikon lens to 1.25"/T2 adapter
ASToptics
Nikon lens to 1.25"/T2 adapter
$ 96.00
ready for shipping in 24 h
ASToptics T2 ADAPTER FOR TELEVUE POWERMATE 4X
ASToptics
T2 ADAPTER FOR TELEVUE POWERMATE 4X
$ 86.00
ready for shipping in 24 h
Celestron Camera adaptor T2 ring for Canon EOS M
Celestron
Camera adaptor T2 ring for Canon EOS M
$ 42.90
ready for shipping in 1-2 weeks
TS Optics Tilting Collimator T2
TS Optics
Tilting Collimator T2
RRP:  $ 58.00
Our price:
$ 54.00
ready for shipping in 3-7 days
TS Optics Camera adaptor T2 ring for Sony Alpha Nex / E-mount
TS Optics
Camera adaptor T2 ring for Sony Alpha Nex / E-mount
$ 34.90
ready for shipping in 3-7 days
TS Optics Adapter of T2 on 1,25 " - put on T2 thread - 15mm overall length
TS Optics
Adapter of T2 on 1,25 " - put on T2 thread - 15mm overall length
$ 36.90
ready for shipping in 3-7 days
Skywatcher Camera adaptor T2-Ring compatible with Canon EOS
Skywatcher
Camera adaptor T2-Ring compatible with Canon EOS
$ 18.90
ready for shipping in 3-7 days
TS Optics T2 Adaptor Ring for Cameras with Micro Four Thirds bayonet (Panasonic, Olympus)
TS Optics
T2 Adaptor Ring for Cameras with Micro Four Thirds bayonet (Panasonic, Olympus)
$ 42.90
ready for shipping in 24 h
ASToptics Camera adaptor T2 adapter - EOS M
ASToptics
Camera adaptor T2 adapter - EOS M
$ 32.90
ready for shipping in 24 h
ZWO Adaptors T2 to 1.25" adapter
ZWO
Adaptors T2 to 1.25" adapter
$ 42.90
ready for shipping in 24 h
ASToptics M42 FILTER SLIDER SYSTEM (1.25") + TRIPOD INTERFACE
ASToptics
M42 FILTER SLIDER SYSTEM (1.25") + TRIPOD INTERFACE
$ 226.00
ready for shipping in 3-5 weeks
ASToptics Camera adaptor T-RING FOR NIKON N1
ASToptics
Camera adaptor T-RING FOR NIKON N1
$ 42.90
Sale price:
$ 25.75
ready for shipping in 24 h
Meade Basic Camera Adapter 1.25"
Meade
Basic Camera Adapter 1.25"
$ 75.00
ready for shipping in 24 h
TS Optics Adaptor from T2 to C-Mount thread
TS Optics
Adaptor from T2 to C-Mount thread
$ 32.90
ready for shipping in 3-7 days
Celestron Camera adaptor T2 ring for Sony E
Celestron
Camera adaptor T2 ring for Sony E
$ 42.90
ready for shipping in 1-2 weeks
TS Optics Adaptor T2 female on C-Mount male
TS Optics
Adaptor T2 female on C-Mount male
$ 32.90
ready for shipping in 3-7 days
TS Optics T2 quick-release connector with 360° rotation, length 5.5mm
TS Optics
T2 quick-release connector with 360° rotation, length 5.5mm
$ 60.00
ready for shipping in 3-7 days
TS Optics Camera adaptor T2/Sony Alpha & Minolta
TS Optics
Camera adaptor T2/Sony Alpha & Minolta
$ 39.90
ready for shipping in 3-7 days
ASToptics Camera adaptor NIKON to M42 adapter - ULTRASHORT
ASToptics
Camera adaptor NIKON to M42 adapter - ULTRASHORT
$ 32.90
ready for shipping in 24 h
Skywatcher Camera adaptor T2 ring for Nikon DSLR
Skywatcher
Camera adaptor T2 ring for Nikon DSLR
$ 18.90
ready for shipping in 1-2 weeks
TS Optics Camera adaptor T2 ring for Sony E
TS Optics
Camera adaptor T2 ring for Sony E
$ 37.90
ready for shipping in 3-7 days
Explore Scientific Camera adaptor T2 ring for Canon EOS with limited optical length
Explore Scientific
Camera adaptor T2 ring for Canon EOS with limited optical length
$ 44.90
ready for shipping in 1-2 weeks
TS Optics Adapter of T2 on 1,25 " - put on T2 thread - 35mm overall length
TS Optics
Adapter of T2 on 1,25 " - put on T2 thread - 35mm overall length
$ 36.90
ready for shipping in 3-7 days