thin between frames

[golden]

i developed a roll of film last night, negs turned out great, but on 4 of the

exposures (not sequential) they are very thin to nothing between that exposure

and the next, like maybe an eighth of the exposure there is nothing there.

what could cause this? ive yet to run into this issue. ive included an

example, thanks in advance

[golden]

and by the way, the next frame started out perfect and square,

[frank.schifano]

Does the camera have a vertical travelling or a horizontal travelling shutter? Did you use a flash?

 

Looks similar to what you'd get with the shutter in a camera with a horizontally travelling shutter set to a speed higher than the flash sync speed.

[golden]

no frank, i used no flash, these shots were taken with a canon fp, (1964) not sure about the shutter thing, im new at this, can you explain. thanks

[golden]

i found what you were talking about and yes it is horizontal, but i didnt use a flash

[mfophotos]

I think one of the shutter curtains is needing adjustment. I'm guessing you took it at a faster shutter speed than the ones that were okay.

[john_shriver]

Yup, that's known as fading. The closing shutter curtain caught up with the opening one. Means it's time to have the bearings cleaned and lubricated, and the spring tensions adjusted. (Known as CLA.)

 

A Canon FP would definitely be old enough to have earned this. All mechanical cameras require periodic CLA service.

 

Recognize that this will cost more than many will think the camera is "worth", but you'll have one that will have a new lease on life. If you have several FL lenses, it would be a fine investment.

 

If you don't have many FL lenses, maybe buy a newer Canon for FD lenses, like the ridiculously cost-effective AV-1.