Is this problem prevalent over every frame?Saha said:Hi Ektar,
Yes, perhaps a better way to describe it is that the image is straying into the margin area. This is happening for rolls that I develop myself, as well as for rolls that I got developed at Ruby. It is happening consistently.
Tetrode said:Is this problem prevalent over every frame?
If yes, then I would agree with Ektar on reason #2. Check the pressure plate to see if it is seated properly and is applying pressure evenly across the film plane.
Another possible culprit could also be imperfect edges of the film chamber frame. Open up your camera's back and check the edges on the film chamber.
Seagulls are notorious for their less than sterling fit and finish.
The 2 1/4" sq sized plate with springs holding it to the camera back. Check the links to the online manuals to find out. Unless yours is missing one, it then would explain your problems.Saha said:thanks...but what is a pressure plate?
Tetrode said:The 2 1/4" sq sized plate with springs holding it to the camera back. Check the links to the online manuals to find out. Unless yours is missing one, it then would explain your problems.
Saha said:I am getting uneven edges (negative boundaries) when I develop 120 6X6 film. What could be the reason? My 35mm negatives give perfect straight line edges. I use a Seagull 405A for 120 mm.