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  • 25mm M48 extension ring 25mm M48 extension ring

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25mm M48 extension ring

Product code: PLLPRM4825

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Quick Overview

The M48 extension rings are available in different lengths, from 4 to 25 mm, and present on both sides of a M48 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 M48 extension rings are preferable to T2 ones since they offer a greater clear aperture (44mm against 38mm): in photographic use with large sensors, they are used to avoid vignetting (decrease in brightness towards the edges of image). In order to use, it is necessary that the accessory we want to connect is equipped with an M48 thread (48x0,75).

Availability: Order

Order €29.00
22% tax incl
if you pay by bank transfer €28.13


M48 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 M48 extension ring
- Black anodizing
- M48 male and female thread on sides

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