R3 Filter Rings 128mm (4 1/2'')
Fits in filters stages with ø 128mm back.
Used to be designed for MB-16,
but can be used with most filter stages in combination with Adapter Ring to reduce down to R3 ring Size.
Adapter Rings can be found after the R12 Ring Section.
Filter Rings 4" do take Round Filters in the back with a diameter of 4".

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Part No: K2.52205.0

With rubber sleeve for UP 14mm, UP 180mm, LDS-UP 14mm and LDS-UP 180m m.
Not compatible with Master Prime Lenses 14mm and 16mm.
Takes reduction rings size R4.

Part No: K2.49102.0

R3 4 1/2' Filter Ring 95mm

For UP 16mm-135mm, 16mm zooms and medium-focal-length video zooms.
Not for use with wide-angle video zooms.

Part No: K2.49109.0

R3 4 1/2' Filter Ring 87mm

For ZEISS Vario Sonnar.
Takes reduction rings size R6