What every photographer dreads happened to me at a shoot the other day; the tripod fell over and my 5D III ended up on it's back. That something had happened to the lens was pretty obvious. Both IS and focus acted strange. So I took it to the repair shop and they had to change IS and some other stuff. That cost me about 550 euros.
However I felt somewhat lucky since the camera body seemed ok. However - when editing the material from that faithful evening I noticed that the aperture changed during the take. As if it was in auto, but in a slower kind of fashion. Or as if somebody (like an apprentice) walked in front of the lights. Since the shoot was made in b&w against a white background this is extra noticible.
So I did a test at home and this confirmed my suspicions. I filmed myself in a closed room, against a white sheet, with constant tungsten lighting, everything in manual and black and white. And there it is; the aperture changes over time as if an invisible someone was changing the iris right there in front of me. And it is even more obvious if you look att the scopes in Premiere. Weird as hell.
I could upload the footage if someone is interested.
I have somewhat come to terms with the fact that this mishap is going to cost me lots of money. But before I go to the Canon repair shop I would like to have an idea about what could be wrong. I hate it when they start changing parts without having a clear idea about where the broken part is or what is the actual malfunction. Any ideas anyone?
Thank you.
Best regards
Magnus, Stockholm Sweden
However I felt somewhat lucky since the camera body seemed ok. However - when editing the material from that faithful evening I noticed that the aperture changed during the take. As if it was in auto, but in a slower kind of fashion. Or as if somebody (like an apprentice) walked in front of the lights. Since the shoot was made in b&w against a white background this is extra noticible.
So I did a test at home and this confirmed my suspicions. I filmed myself in a closed room, against a white sheet, with constant tungsten lighting, everything in manual and black and white. And there it is; the aperture changes over time as if an invisible someone was changing the iris right there in front of me. And it is even more obvious if you look att the scopes in Premiere. Weird as hell.
I could upload the footage if someone is interested.
I have somewhat come to terms with the fact that this mishap is going to cost me lots of money. But before I go to the Canon repair shop I would like to have an idea about what could be wrong. I hate it when they start changing parts without having a clear idea about where the broken part is or what is the actual malfunction. Any ideas anyone?
Thank you.
Best regards
Magnus, Stockholm Sweden