Angenieux 11.5-138 T2.3 Super 16 Zoom
Zeiss 35mm super speeds
After a bunch of tests and lots of generous time by camera tech at a rental house I use we have still been unable to narrow down the problem. We have found a few things and run some tests, but nothing that replicates exactly what happened on the short film in December. I should note that the 2 rolls of test film I shot after purchasing the camera we're all shot at dusk with nothing but very soft natural light.
here's what we've looked into so far.
1. There appears to be a small light leak ( what I would call a leak anyways ) in the upper right corner of the gate when looking at the gate from the rear and shinning a mag light down the lens with the shutter closed. I was told by the camera dealer I bought it from that this is not cause for alarm and is standard in SR's. I don't know if this is true, I don't have another body to compare it to.
2. Shot tests with lens cap on, moving a 1k around the camera to check for light leak. Test came back clean.
3. Shot a test with a crystal pistol firing when the shutter is closed. Test resulted in a definite light leak. ( word from the tech at the camera dealer is that this is not a valid test and that the crystal pistol is way to strong of a light source for the shutter to stop it from hitting the film.) Personally when viewing the crystal pistol it really didn't look all that bright to me.
4. Supposedly upon return for service to the camera dealer the back of the mirror shutter was found not to be as "matte black" as it should be and was repainted.
I and the camera tech that i have been working with are convinced this is not just a normal lens flare. The camera dealer is stressing normal lens flare and that they did not find any issues with the camera after I returned it for them to check out. Flares appeared across most of the super speeds as well as a few zoom shots. They were not consistent with any one magazine. The crew on this project were all seasoned professionals.
One of the shots that concerns me the most in a handheld shot I did out a 3rd story window. I had a street light center frame and as I tilted down, the moment the street light was out of frame the streaking flare appeared (frame 1). I did a similar test after the camera was returned from service and still noticed a similar effect on street lights in the back ground.
We've really run all the tests we can think of. I'm really afraid to take a job with this camera at this point. I have had it on consignment with a rental house (they have been extremely helpful in trying to help me solve this problem.) but neither one of us feel comfortable renting the camera out. The camera dealer I purchased the package from did check the camera out for free even after the warrantee had expired but does not seem to think this is a serious problem. If anyone has any idea's, or experiences that might help solve this I'd really welcome the assistance. I'd hate to think I bought a lemon, I purposely avoided ebay and went with a reputable dealer in hopes of avoiding this type of thing.
Edited by Joe Farris, 23 March 2007 - 07:28 PM.