josephvinson

Hello medium format friends, I purchased a used 645 pro setup with a couple used film backs and was hoping to get started with some fun and clean medium format photography, but some of my negatives are displaying a bit of an underexposed transition on the edge of the frame. Not all of the negatives display this, some are totally clean and fine, however I am looking for a bit more consistency as I progress with using this camera. I'll list a few examples, with one being two exposures that reveal a normal exposure and an underexposed edge. Most of the affected frames are underexposed in this gradient fashion over about 10% of the frame's size, always on the short side of the film so it can be cropped at times, but a very few amount seem to cover a good 30% of the film's surface and are difficult to work with. Thank you all for the help and for any feedback!

Yea I might just purchase the manual crank and do away with the auto winder. I am aware there is a film advance knob located on the detachable film holder, can this be used to advance and expose the roll of film or is it simply a means of reaching the first exposure? I inspected the mirror plastic stopper that you mentioned and it seems okay, slight wear to it, but it is intact from what I could see. Greatly appreciate your insight and help!

Yup batteries are fresh, and I re-did the connection, loaded a new roll of film and it did seem to wind it to '1' when I set it to 'Start'. But then I exposed 1 photograph and when I attempt to expose another it makes a single clicking noise.

Thank you for the reply on my post. I attempted to load a roll of film and use it, but had some troubles...perhaps my auto-winder is bust? I loaded film and closed the hatch to the back, removed the dark slide, and moved the switch to 'Start' on the winder, but nothing happened. I was able to expose some photos via the winder exposure button, but after 6 or so it stopped. I then opened the back of the film body and noticed it had not fully advanced, but upon closing it I was able to make more exposures. I know the film is ruined, but I was just trying to troubleshoot.

Hello photographers, I recently purchased a Mamiya 645 Pro that was equipped with an Auto Winder which I think is a WG401 model and a prism finder on top. I really do not know how to begin using the camera, I have looked up manuals and videos about the camera and its components/how to load the film, but I cannot seem to approach the winding process properly with the auto-winder. I would like to know what are the steps with using the auto-winder after loading film and closing the film back door, what are the steps from start to finish after loading the film. Thank you so much for your help. -JV