Anaconda_ Posted September 23, 2019 Share Posted September 23, 2019 Hey all, A little while ago I got an amazing deal on the original BMPCC, so good that I couldn't turn it down and it's all been great, everything's worked as well as it should... with manual lenses. I've recently tried using a native MFT lens (14-140) but noticed I don't have iris control or any focussing as it's a focus by wire lens. I've also put on my Viltrox booster and I don't have any iris control on my Canon lenses, even with the little switch on the booster that should control the iris. I tried cleaning the contacts on the camera and lenses, but the problem persists, so now I'm thinking the issue lies within the lens mount its self. Maybe the connectors aren't getting power? I'm more than happy to open up the camera and have a gentle poke around to see if I can fix the problem, but I can't find any relevant information about what I might find when I get inside. Does anyone have any ideas of where to look or what might be the cause? Or is my only solution to treat it as a dumb mount and use manual lenses? If so, can anyone suggest a wide lens - the widest I have is 28mm. I assume the SLR Magic 8mm is a standard go-to here? Link to comment Share on other sites More sharing options...
Avenger 2.0 Posted September 23, 2019 Share Posted September 23, 2019 Sounds to me like the fuse of the power supply that powers the mount is burned out. Should be possible to fix if you know what to look for. Silkscreen on PCB might be indicate them with Fx (where x is a number). Try measuring the fuses and pins with a multimeter. Anaconda_ 1 Link to comment Share on other sites More sharing options...
Anaconda_ Posted September 23, 2019 Author Share Posted September 23, 2019 4 minutes ago, Avenger 2.0 said: Should be possible to fix if you know what to look for. That's what I'm asking haha... Link to comment Share on other sites More sharing options...
Avenger 2.0 Posted September 24, 2019 Share Posted September 24, 2019 12 hours ago, Anaconda_ said: That's what I'm asking haha... If you don't have the skills it's better not to open it yourself. From teardown videos it looks rather complicated and it is very easy to completely kill it. Just use this one with manual lenses. You can still use the viltrox with manual lenses (EF, M42, etc...) to get wider fov. Link to comment Share on other sites More sharing options...
Anaconda_ Posted September 24, 2019 Author Share Posted September 24, 2019 Thanks man. The thing is, from those videos, they stop when they get to the lens. There’s also screws on the front of the lens mount, so it’s not a case of skills - more a case of do I open up the front or the back to find what I’m looking for? Link to comment Share on other sites More sharing options...
jagnje Posted September 24, 2019 Share Posted September 24, 2019 disconnect and reconnect the lens /lens with adapter while camera is operating. That usually did the trick with mine. Link to comment Share on other sites More sharing options...
Cinegain Posted September 24, 2019 Share Posted September 24, 2019 Ermm... did you approach BMD or store it was bought from originally at all? I did when I had a hot pixels issue and got it exchanged. They might be able to do more for you than you tinkering around with and possibly bricking it. Silly thought, I know. Link to comment Share on other sites More sharing options...
Anaconda_ Posted September 24, 2019 Author Share Posted September 24, 2019 I got it second hand, it's well out of warranty, and I don't have a receipt. Definitely would have been first port of call... Link to comment Share on other sites More sharing options...
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