I've recently started home developing my B&W film and it's been going pretty well. I just developed a new roll and things look good on most of the frames, but I noticed an anomaly on a handful of frames that I can't really explain:
The problem is what appears to be a band of slightly higher density starting at the edge of the frame and extending into the frame. It seems to affect about four frames on the entire roll of 36 and all of the frames are in portrait orientation. The higher density area appears to be in the same location on all affected frames.
I went back and looked at the previous roll I developed and I see something similar on one of the frames that is also in portrait orientation - it should be noted that this roll was shot with a different camera/lens. The area of higher density does not extend into the rebate area, so I assume that (and the fact that this issue is seen with multiple cameras/lenses) eliminates the possibility of a light leak.
I first noticed the issue in scans of the negatives, but I see the issue on the negatives themselves. I've included a couple of scans to illustrate the problem (I darkened some of the images to make the issue more obvious).
The film is Tri-X 400 developed in HC-110, Ilford Ilfostop stop bath and Rapid Fixer. The film was washed using the Ilford method followed by a final wash step using distilled water and a few drops of photoflo. The film was then hung to dry vertically.
Does anyone have any idea what might have caused this? Could these be as simple as drying streaks? I think they are in the direction in which the film was hung to dry, but admittedly I haven't tried cleaning the film with anything yet. They don't really look like that to me, though.
The first one below initially looked like a cloud to me, but then I realized the other frames showed the same band in the same location on the film and yet they were shot facing a different direction.
These two are from the same roll:
This one is from a different roll shot with a different camera/lens:
The problem is what appears to be a band of slightly higher density starting at the edge of the frame and extending into the frame. It seems to affect about four frames on the entire roll of 36 and all of the frames are in portrait orientation. The higher density area appears to be in the same location on all affected frames.
I went back and looked at the previous roll I developed and I see something similar on one of the frames that is also in portrait orientation - it should be noted that this roll was shot with a different camera/lens. The area of higher density does not extend into the rebate area, so I assume that (and the fact that this issue is seen with multiple cameras/lenses) eliminates the possibility of a light leak.
I first noticed the issue in scans of the negatives, but I see the issue on the negatives themselves. I've included a couple of scans to illustrate the problem (I darkened some of the images to make the issue more obvious).
The film is Tri-X 400 developed in HC-110, Ilford Ilfostop stop bath and Rapid Fixer. The film was washed using the Ilford method followed by a final wash step using distilled water and a few drops of photoflo. The film was then hung to dry vertically.
Does anyone have any idea what might have caused this? Could these be as simple as drying streaks? I think they are in the direction in which the film was hung to dry, but admittedly I haven't tried cleaning the film with anything yet. They don't really look like that to me, though.
The first one below initially looked like a cloud to me, but then I realized the other frames showed the same band in the same location on the film and yet they were shot facing a different direction.
These two are from the same roll:
This one is from a different roll shot with a different camera/lens: