Features:
[High-quality performance] This focusing helicoid tube is made of Copper core, high quality and stable, equipped with standard M42 mount.
[Applicable devices] This helicoid tube is useful for those lenses without focus ring,it can be used as macro barrel and offers fine focus control for macro photography.
[Compatibility] It will be better when you use it with filter adapter together.If you have any problem with our product please contact us, we will do our best to help you.
[Easy to use] The length of this helicoid tube is adjustable, it offers a distance for lens focusing adjustment, easy to use.
[Portable] Lightweight and easy to carry,great accessory for photography enthusiasts.
Description:
The length of this helicoid tube 20mm (min) to 40mm (max), it offers a total of 20mm movement distance for lens focusing.
Mounting Extension Tube in between the camera body and lens will create more distance between the lens and film plane. By moving the lens further away from the film or digital camera sensor, the lens is forced to focus much closer than normal. The greater the length of the extension tube, the closer the lens can focus.
This focusing helicoid tube is made with standard M42 mount.
You can use M42 screw mount lenses, such as Carl Zeiss or Pentax 42mm screw mount lenses, and even enlarger lenses.
Note:
1. There is no electronic connection in this adapter. 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 by Manual focusing with manual mode or aperture priority mode.
Package Includes:
1 * Copper Core M42 to M42 (20-40mm) Adjustable Focusing Helicoid Adapter
