Product Overview
R1 Filter Rings – for 138mm Filter (165mm ring diameter)
Fits in filter stages with Ø 165mm
like most Filter Stages for MB-14 and MB-28
Filter Rings 138mm do take Round Filters in the back with a diameter of 138mm
With rubber sleeve for Master Prime Lenses, UP14mm, UP180mm, LDS-UP 14mm and
LDS-UP 180mm. Takes reduction rings size R4
