Hello, im fairly new to the analog scene, I've done 35mm a few times, polaroid's, and im just now getting into 120 film. I did a few weeks of research on which camera to get, and managed to get a Mamiya C300s with 4 lens for a decent price. But on to the bad part, 3 of the lens came with case, and the one I was taking out was the 55mm lens, and my hand slipped (It was really stuck in the case) on the side and broke off the plastic lever for the aperture (see both attached). It moves and works fine, but I am wondering if there are any replacements out there. I dont mind taking stuff apart, and I wouldn't mind getting a broken lens, but its such a small part I dont want to buy a whole lens just for that. I still have the broken part, but the plastics posts are toast. If anyone knows someone that has extras or makes a replacement please let me know. Thank you in advance.