Just a quick(-ish) question: I am planning on doing some serious test footage with my humble S 16mm converted K-3 (still didn't arrive yet - almost!). Especially regarding camera reliability, accuracy of the view finder, focus and how much off the frame rate actually is (I'll simply film an accurate clock with a 'jumping' second hand and count the actual frames - just a few seconds should be fine). The only way is using reversal film stock, closely observed. Road block: the only easily available reversal film stock (which I can get developed at very reasonable prices) is the Wittner/Agfa 200D - which has an estar base. I'm a little reluctant regarding jamming and losing loops. It doesn't break and might ruin the camera (besides not telling me how acetate stock would behave - besides having a different drag which might affect the actual frame rate together with image stability and eventual sources of scratching/rubbing). I have some E 100D (E-6), but this is way too precious for camera tests (for me). Black and white acetate stock perhaps? Should be a lab process which is easily available. Home processing is still out of the question.
Any input and experience shared highly appreciated!