- Female side: inner diameter 35 mm
- Compatibility: V-mount lenses
- Male side: M39 X 1mm
- Weight: 20 g
- Metal material, reliable performance and durability.

How to install the V-M39 ring is as follows:
- The connecting ring is installed on the rear end of the lens;
- Tighten the three screws on the ring with a screwdriver;
- Connect the focusing tube and install the lens body. The lens aperture can be visually positioned at 12 o'clock. If the position is off, loosen the three screws, rotate the lens to the appropriate position, and then tighten the screws.

Package
- 1 x lens adapter