Feature:
1. The focusing tube is the best choice for zooming in or changing the lens. It provides a focusing system for lenses without a focusing system.
2. Can also be used as a macro tube to provide fine focus control for macro photography.
3. The length of the length is 12mm/0.5in (minimum) to 19mm/0.7in (maximum), which provides an adjustment distance of 7mm/0.3in for lens focusing.
4. Made of aluminum alloy, black anodized, longer service life, excellent hand feeling.
5. The inner wall of the focusing tube is treated with extinction to avoid the influence of reflected light on imaging.
6. Use universal M42 and M39 threaded interface, strong versatility, easy to transfer.
7. The focusing tube allows the idle old lens to be used for with a digital camera.

Specification:

Condition: brand new
Item type: Focusing Tube
Material: aluminium alloy
Color: black
Weight: Approx. 56g
Focusing range: Approx. 12-19mm/0.5-0.7in
Interface: Male port: M42 threaded mount
Female port: M39 threaded mount

Package List:
1 x Focusing Tube