M42-M39 25-55mm Metal Macro Focus Lens Mount Adapter Professional for Camera

Description:

Manual Lens Adapter with Helicoid Macro Tube for M42 42mm Screw-Mount Lens to M39 39mm Screw-Mount Camera Body.
The macro 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 macro performance without needing to switch to a specialized lens and you will retain all the normal benefits of your optic when the macro function is not in use.
It allow you to take close up/macro image more easier when full extended. It can focus infinity when closed of course.
The length of this Helicoid tube 25mm-55mm, (30mm movement distance for focusing)

Specification:

Front mount: M42 screw mount female
Rear mount: M39 screw mount male
Length: 25mm to 55mm (30mm movement distance for focusing)
Focus: manually
Material: aluminium alloy

Package Includes:

1 x Lens Adapter