ZEISS hållarring A53 till d=66 mm

A53 to d=66mm holder

The A53 retaining ring, d=66mm, requires 15.5mm of working distance with the Greenough body or with a front optics systems of less than 1X, or if necessary an orientation of 0mm or 15.5mm from the working distance of the front optics systems greater than 1X