For ZEISS Standard Primes with rubber sleeve and connection ring. When using physically short Lenses such as ZEISS Standards. K2.34131.0 - R1 Intermediate Ring is required in addition.

(no reduction rings) For ZEISS Vario Sonnar T2/10-100II, and T2.2/11-110.

For Ultra Primes 16-135 mm with rubber sleeve and connection ring. Not for use with wide-angle video zooms.

With rubber sleeve for Master Prime Lenses, UP14mm, UP180mm, LDS-UP 14mm and LDS-UP 180mm. Takes reduction rings size R4.

For Cooke 20-250.

For Angénieux 25-250 HP with rubber sleeve and connection ring.