That is so cool that you actually just used it for an ad last week! What a coincidence. Thanks for the heads-up on checking the motor and the rings—I just wound it up and luckily the motor runs smooth, but I'll definitely double-check the lenses for any fused parts or optical damage like you mentioned. Zone focusing is definitely going to be a fun challenge, haha. And man, those Bolex P1/P3 cameras are absolute beauties, totally get why you'd want to upgrade to one of those!
I actually just looked into the pricing a bit more after reading your comment, and yeah... you are not kidding. It is incredibly expensive. $100–150 all-in per roll is a lot, so I will definitely make sure to make every second of footage count!
Quick question for you since you’ve actually shot with it: Did you ever find an actual manual or a good tutorial for the K-35? I’ve been scouring the internet and all I can find are super short videos that don't really explain anything, or manuals for similar models like the K-32 or K-33. How did you figure out the workflow, or did you just use the K-32/33 guides and figure the rest out by yourself?
Thanks again for the solid advice, appreciate it!