JLachiw

Hello again, I finally got my negatives developed and got the test results. And from what I can tell the issue is only on 1/1000, or at least its very obvious on 1/1000. Here's a rough scan of the negatives, and from left to right the images were shot at 1/1000th, 1/500th, and 1/250th, with the proper aperture for the exposure. I really hope this is the case, since I'm willing to sacrifice using one shutter speed to be able to use my Pentacon Six.

Hello all, I recently picked up a Mamiya C330f in decent used condition, and I've been cleaning it up to use it soon. A big issue I haven't been able to solve yet is the focusing mechanism, its quite stiff. The mechanism can extend fully but even when the friction lever is fully released the focusing knobs need more force than usual. I assume I can just lubricate the geared tracks but I want to know if there's any official procedure, and what lubricant would be recommended. Thanks

I haven't sent in the film yet, and since Christmas is soon, I won't get the answers until early January. The issue is that I bought the camera a year ago, and these shutter issues haven't been quite as strong until recently. If there was any warranty its likely gone.

Finished off a roll of film today, took two different pictures at three times, at 1/1000, 1/500, and 1/250. Hopefully only the pictures at 1/1000 will have the issue, since I can just avoid that speed when using my camera.

These are both from different rolls, developed at different times. The effect is noticeable on the negative. I forget but it is likely that both of these pictures were taken at 1/1000, and maybe the issue lies there. I have several photos with similar setting yet no streaks. I have a roll in the camera currently, and I'll give it a test by taking the same photo at 1/1000 and other slower speeds.

Hello all, I've been using a Pentacon Six TL for several months, and I've noticed several images have dark streaks running vertically through the image. They all happen under similar circumstances, on images with bright sky, taking up much of the upper part of the photograph. I decided to search for the reason and found that similar streaks appeared due to processing error. I contacted the lab my film is processed at, and their response was that those streaks were light leaks. However, from my understanding light leaks would darken a negative, and create bright streaks on a positive. The streaks appear in similar places each time, which is why I initially agreed on a potential light leak. The more I consider, I'm still unsure if its a developing issue, a light leak, or if perhaps my camera's shutter moves at an inconsistent speed. I purchased the camera refurbished from a well-known seller on eBay so the camera was fully stripped and cleaned, so I'm somewhat skeptical about this issue. Please tell me what you might think, I've attached several photos below which show the issue at its worse, with clear density variations in what actually was a clear sky.