M42- 17mm-31mm Adjustable Focusing Lens Mount Adapter,

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Description:

Manual Lens Adapter with Helicoid Tube for M42 42mm Screw-Mount Lens Cameras.
The function of this adapter provides a focusing helicoid that will increase the lens-to-sensor distance, allowing for closer focusing than normally allowed by the lens itself.
This means you can now get performance without needing to switch to a lens and you will retain all the normal benefits of your optic when the function is not in use.
It allow you to take close up/ image more easier when full extended. It can focus when closed of course.
The length of this Helicoid tube 17mm (min) to 31mm (max), it offers a total of 14mm movement distance for lens focusing.

Specification:

Front mount: M42 screw mount female
Rear mount: for E mount (, etc..)
Length: 17mm to 31mm (14mm movement distance for focusing)
Focus: manually
Material: aluminium alloy + Coppy

Package Includes:

1 x Lens Adapter

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