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  • 7mm T2 extension ring 7mm T2 extension ring

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7mm T2 extension ring

Product code: ATPRT27

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Quick Overview

The T2 extension rings are available in different lengths, from 7 to 40 mm, and present on both sides of a T2 thread (one side is male, the other is female). Completely made of metal with black anodizing (both internal and external), these extension rings can be used in many different applications, especially photographic.

The 7, 14 and 28mm extension rings are externally provided a convenient knurling to improve the grip of the extension ring and then to make it easier installation or removal from the instrument that they are screwed on. In order to use all the T2 extension rings, it is necessary that the accessory we want to connect is equipped with an M42 thread (42x0,75).

Availability: Out of stock

22% tax incl
if you pay by bank transfer €10.67


T2 extension rings have different use: 

  1. can be screwed to optical accessories (such as field flatteners or focal reducers) to bring the camera sensor at the right distance from the lens (to optimize performance) 
  2. can be used to separate the mechanical accessories that, when used together, can touch and then not work properly (eg an off-axis guider could touch a filter wheel and it could prevent its rotation searching for a guide star)

Technical specifications:
- Metal T2 extension rings
- Black anodizing
- T2 male and female thread on sides
- External knurling to improve grip (in 7, 14 and 28mm models)

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