Step up lenses of different diameters to a 143mm front diameter.
143mm Clamp-on Rings
The 143mm Clamp on Rings are an optional accessory that has been designed to accommodate lenses of different diameters to a 143mm front diameter.
It works as a normal clamp on ring, helping to secure the matte box to the lens while providing light protection with our innovative Z-cuts.
The 143mm Clamp On Rings are built from high-grade Delrin to ensure your set up remains light and provide you with maximum durability.
What size do I need?
Need to find your lens size? visit the Motion Picture Lens Database compiled by Richard Bradbury. To find the right clamp on ring, look for the “front diameter” of the lens.
Here’s a list of some of the most common clamp on rings and their compatible lenses:
85mm: Celere HS Primes, Tokina 100mm Cine Macro, Fujinon MK 18-55, Fujinon MK 50-135
87mm: Cooke Mini S4/i
95mm: Sigma Cine Primes, ARRI Supreme Primes, Zeiss CZ.2 (28-80mm, 70-200mm), Leica Summilux-C, Summicron-C, Zeiss CP.3
100mm: Schneider Xenon FF
110mm: Cooke S4/i, Cooke 5/i, Cooke 7/i
114mm: Zeiss CP.2, Canon CN-E Primes, Xeen Cine Primes, Tokina Vista Primes, ARRI Supreme Primes, Signature Primes, Angenieux EZ-1 & EZ-2, Zeiss CZ.2 (15-30mm), LWZ.2, Fujinon ZK Cabrio zooms
For a definitive list, always look at the lens manufacturer website or Motion Picture Lens Database.
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