Weird Mark on Negative

[Doc W]

Any guesses as to what this might be? One suggestion is a lens mounted a little too loose (and I just put it on the board, so that is a possibility). I don't know if it makes any difference, but it was a slow shutter speed (1/2 or 1/4, IIRC) and the subject moved slightly, spoiling the shot. But what is this weird crescent?

 

[Doc W]

Sorry, that looks a wee bit small. I will try to post a larger image.

 

[Doc W]

 

[R.Gould]

It looks like a stress mark to me, I have had this on 120, caused sometimes by problems the film, maybe you had a problem geeting the film in the dark slide,

 

[railwayman3]

Either a stress mark or a scratch ?

 

[tron_]

Doesn't look like a stress mark to me. I've had them appear on my 120 films many years ago and they were always a little wider and of varying clarity die to the curvature of the stress mark.

Looks like a scratch to me.

 

[Doc W]

Just an old-fashioned scratch? So this probably when the emulsion was wet?

 

[Rick A]

I wouldn't rule out stress mark. I caught one from using a Combi Plan tank. The film retainer kinked a sheet ever so slightly, and it took a very long time to figure out what was in my print that I couldn't see on the negative.

 

[tron_]

Stress marks are almost always crescent-shaped. The mark you posted does not look like the crescent-shape that is indicative of a stress mark. I'm assuming this is 4x5 film? Also if this was a stress mark caused by creasing of the film, you would be able to hold it at an angle to a light source and see the indent in the film, much like how if you look at a car door at an angle you can see the door dings.

https://www.olympus-lifescience.com...e/primer/photomicrography/bwprocessingerrors/

 

[Rick A]

Stress marks are almost always crescent-shaped. The mark you posted does not look like the crescent-shape that is indicative of a stress mark. I'm assuming this is 4x5 film? Also if this was a stress mark caused by creasing of the film, you would be able to hold it at an angle to a light source and see the indent in the film, much like how if you look at a car door at an angle you can see the door dings.

https://www.olympus-lifescience.com...e/primer/photomicrography/bwprocessingerrors/

Check out the "bird" in the center of the shot, slight kink. Cannot be seen in the neg without a good magnifying glass.

 

[MattKing]

Check out the "bird" in the center of the sho

I think it adds to the photo!

To the OP - yours looks like a hair on the negative at the time of exposure.

 

[Rick A]

I think it adds to the photo!

On an 11x14 it looks positively prehistoric.