The metal version of the Rusan adapter is slim, robust and light. Ideal for mounting a lens on a NV MAU residual light amplifier attachment. How do I measure correctly?

• Please include the brand of the lens and the magnification to be sure, so that you can be sure of receiving the correct adapter. In the checkout area of ​​the shop you will find the "Order note" field.
• To determine the correct size, the outer diameter of the optics is measured, the maximum tolerance is 0,5 mm.