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Greetings everyone! My name is Derick and I'm new to the forums. I'm a filmmaker based in Philly and I work primarily with super 8 and 16mm film. I recently acquired an Angenieux 12-120mm Type C with the C Mount to use on my Bolex rex 4. Now from my understanding, the type c is made to be RX compatible, which is great. My only question/concern is, all of the images i've seen of this lens online shows the lens with the silver cupped mount with the engraved 'BOLEX RX" or something along those lines. The thing is, mine doesnt have the so called "silver cup" with that engraving. It just seems to be a normal c mount that screws right onto my camera. My question is, is my lens still properly calibrated for the reflex prism although it doesnt have this engraved mount? Were there different variations of the TYPE C lens that were made throughout the years, making mine different but the same as far as collimation? Sorry if this question has been asked before, I just can't seem to find the answer and I dont want to eat up a bunch of film and find out all of the images are soft. Thanks in advance, Derick