Light leak diagnosis help please.

[Sam McRae]

I saw something similar some years back, a student was occasinaly using a cable release in a way that allowed it to cross in front of the lens. It had a white covering.

Oops. Definitely not the case here. I am sure of that. Thank you.

[ericantonio]

Are you pulling on the back when you pull up on the darkslide? With my thumb and fingers, I "pinch" the whole back assembly so when I'm pulling the darkslide, that whole thing stays put back there. Sometimes I see people pulling the darkslide and accidentally pulling the back open slightly

[Sam McRae]

Are you pulling on the back when you pull up on the darkslide? With my thumb and fingers, I "pinch" the whole back assembly so when I'm pulling the darkslide, that whole thing stays put back there. Sometimes I see people pulling the darkslide and accidentally pulling the back open slightly

This is worth investigating. A few of my dark slides have become a little bit gritty(tougher to remove). If the light is coming in from the top of the back then the pattern would seem to make sense. I do think it is probably from the front still, but I will be more cautious.

Thank you very much,

Sam

[Light Guru]

Thank you very much everybody. Before the plea for help I had gone in the darkroom with a light in the camera but I couldn't see anything. I will try again with a brighter light. I will post my results when I figure it out.

Make sure the bellows are fully extended when doing this.


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[Steven Ruttenberg]

Was the film x-rayed? Just a thought.

[Bob Salomon]

It is always good technique not to pull the dark slide totally out but just far enough to fully expose the film. This way light can’t sneak in the slide slot. Especially with older holders!

[Steven Ruttenberg]

If you don't pull them out and reverse them how do you tell which film has been exposed?

[Bob Salomon]

If you don't pull them out and reverse them how do you tell which film has been exposed?

Some slides have a panel on the end that you can write or make a mark on. Otherwise a good marker can make a mark.

[ericantonio]

If you don't pull them out and reverse them how do you tell which film has been exposed?

Always carry masking tape and a sharpie. It pays to write on film holders and tape them on top. I've pulled holders from a big bag of junk only to watch the darkslide catch on something. Tape the crap out of anything that can and may move.

[Steven Ruttenberg]

Always carry masking tape and a sharpie. It pays to write on film holders and tape them on top. I've pulled holders from a big bag of junk only to watch the darkslide catch on something. Tape the crap out of anything that can and may move.

That happened to me once and now I use frog tape before and after exposure. I use the black side of slide to indicate exposed. My Chamonix holder has white dot for unexposed.