M42 to M42 Adjustable Focusing Helicoid Adapter 17mm-31mm 17

M42 to M42 Mount Adjustable Focusing Helicoid Adapter 17-31mm   Feature:

• This focusing Helicoid tube is made with standard M42 mount.
• Made of Anodized Aluminum and Core brass in Black finish with high quality.
• The length of this Helicoid tube 17mm (min) to 31mm (max), it offers a total of 14mm movement distance for lens focusing.
• Instruction, mount the Helicoid tube to your lens, and then the combination of lens and Helicoid tube to the camera.
• This Helicoid tube is useful for those lenses without focus ring
• It could be used as Macro barrel and offers fine focus control for macro photography.
• It will be better when you use it with filter adapter together.

Package:
M42 to M42 (17-31mm) Focusing Helicoid Adapter x 1pc

 

Settings:   Put red marks of the adapter and lens collar together.   Turn the adapter anticlockwise till the fixative click.   Mosty it will use Manual or AV mode.       Removing:   To remove the adapter you should unpress fixative pin and turn the adapter clockwise.       Notice:   1. Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other function will not        operate correctly while using this adapter.   2. In this case "Stop-down mode" will need to be used when metering since the lens doesn't have the        ability to have its apeture controlled by camera body.   3. You can shoot with manual mode or aperture priority mode.  

Installation: Rotate snap