negative problem, please advise!

hoftwi

hoftwi

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i have just developed my 2nd roll of film, but half of the photo on the negative are black which the scanner (v500) can't pick them up either. i won't double some of the photo might be underexposure,some of them i am sure i didn't change the setting but half of them turned into black in the negative and other show and scan fine.

may you guys please advise whether it is my dev problem or just because they are underexposure or any other reasons?

thanks

IMAG0124.jpg
 
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hoftwi said:
might be underexposure,some of them i am sure i didn't change the setting but half of them turned into black in the negative and other show and scan fine.

may you guys please advise whether it is my dev problem or just because they are underexposure or any other reasons?

thanks
QUOTE]

its over exposure , maybe sticky shutter , or aperture not closing down ,or a very big light leak
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That's a bit of a puzzler. It looks like huge overexposure but the gap between the frames is just about visible, so maybe a light leak. On the other hand the sprocket holes aren't fogged, or maybe they are but just a tiny bit on the inner edge? You don't say what camera it is but I think I'd check for gummy light seals at end opposite to the cassette. If half the frames are OK, I don't think it's a development problem.
 
That certainly looks odd as massive overexposure would not affect the gap between frames surely? A light leak would also fog the sprocket areas. Perhaps the film is not advancing properly between frames?
 
i was using Pentax ME Super and the sprocket holes aren't fogged, they actually look fine. i will check on the light seal as well but don't think there is a leak as the rest of the photo look prefect and i had developed my 1st roll 2 weeks ago and was using the same camera, but no sign of light leak at all. i don't understand what went wrong. thanks all for the advises again.
 
I can see faint lines between the frames.

Could it perhaps be aperture blades sticking wide open, causing gross overexposure? Do you remember if all the overexposed frames shot using the same lens?
 
Looks to me like the film was rewound in the camera with the lens partly open.
That is the only time the sprocket area is covered but the picture area and gaps uncovered to get light.

It could also be a serious light leak in the camers , but I would not expect that to be so consistent.
 
It looks like plain and simple overexposure to me. When it's really strongly overexposed it can often seep outside of the frame.
 
Terrywoodenpic said:
Looks to me like the film was rewound in the camera with the lens partly open.
That is the only time the sprocket area is covered but the picture area and gaps uncovered to get light.......
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I would have thought that even with the lens entirely removed you should still be able to rewind a film safely without affecting the film.
 
boliston said:
I would have thought that even with the lens entirely removed you should still be able to rewind a film safely without affecting the film.
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Not necessarily.... If the shutter is stuck the mirror will be up.
 
boliston said:
I would have thought that even with the lens entirely removed you should still be able to rewind a film safely without affecting the film.
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Not necessarily.... If the shutter is stuck the mirror will be up.

I would have thought it would be easy enough to check over the camera functions.
 
squishy said:
I can see faint lines between the frames.

Could it perhaps be aperture blades sticking wide open, causing gross overexposure? Do you remember if all the overexposed frames shot using the same lens?
Click to expand...

i am not quite sure whether it could be the aperture blades sticking or not, but all overexposed photo were taken by the same lens.
 
Hmmm, the over exposure seems to extend to the sprockets, which is more than i'd imagine for over-exposure in camera. Is your developing spool transparent plastic or some opaque material?
 
It's simple overexposure, not a development issue ive seen or can imagine to be feasible. Development issues would affect ALL areas of the film, even the sprockets

I think your lens has a sticky aperture or your shutter is slow, thats all it can be in this case as it is too uniform to be a light leak

Overexposure can bleed into the sprocket area in most cases, i've got a stack of overexposed negs with dark sprockets from cameras with perfectly good seals.

Rob
 
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