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Hi all, I recently did some minor tests with a handful of Super 16 zoom lenses on my BMPCC4K in the 2.6K S16 crop mode. I was finding that whilst sharping up at the longer focal lengths is no problem, when I pulled out to the wider end everything became a bit soft and I couldn't find the focus. At first I thought that it was just that the focus was so deep at the softness was part of the look of the lens but in hindsight I tested mostly at T5.6 so I'm starting to think the flange distance was just off. I have shims for my PL-MFT adapter but I didn't get the chance to try them out. Any lens specialists that know a bit more on this subject - from what I'm describing, does this just sound like a flange distance issue? And if so - how do you know if the lens needs to be closer or further away from the sensor? Obviously my shims will allow me to make minor extensions of the flange distance but I have no way of bring the back element closer. If you've made it this far, thanks for taking the time to read! Any feedback is appreciated.

Recently I found an article showing Angenieux 12-240mm adapted to be used on Canon 7D making it a 38mm-768mm lens on APC sensor or 24-480mm in 35mm. Would this set-up work? Angenieux 12-120mm (cameflex) > M4/3 (adapter made by Hawk) > Doubler (teleconverter) > M4/3 to Canon EOS adapter > Canon 7D.