4x5 Lens Flare? 50% of Photos have it. Opinions?

AgX · Mar 2, 2018

paul ron said:
what camera are you using?
check it for light leaks using the bright light inside method but put a film holder in when testing. your film holder may not be seating properly.

How could a light leak at the camera produce fogging, such sharply edged going through the image center?

Ces1um · Mar 2, 2018

Look at the prominent vertical line where the development changes - it's off on a slight angle. The op is using custom rollers with a patterson system 3. System three has a lid so it will not sit fully horizontally. My thoughts, insufficient volume of developer, tank placed on it's side, custom roller either not activated right away or it was allowed to sit in one position for a longer period of time, so that section was developed more than the rest.

paul ron · Mar 2, 2018

youre probably right. im not familiar with his system.

but he did ask how to check for light leaks.

ChuckP · Mar 3, 2018

Can't see how it may relate to your problems but when doing your testing make sure to use a proper lens hood to cut off non-image light from bouncing around inside the camera.

jtk · Mar 3, 2018

If Graflex could be focal plane shutter drag...possibly needs CLA...though mention of careless use of dark slide provides another clue.

Exposures and even focus are erratic so guesses about erratic development problem might also be correct.

canuhead · Mar 3, 2018

Ian Grant said:
...I'm fairly sure what's happening is the reel's not rotating as you expect, there's clear lines on some images which would seem to indicate this.

Ian

^^ This...

WilmarcoImaging · Mar 3, 2018

Looks like a focal plane shutter issue to me.

Does not look like lens flare. Does not look like a light leak in the camera. Possibly a processing issue related to chemical coverage on the film. I am going with focal plane shutter problem.

John Koehrer · Mar 3, 2018

Another question that hasn't been answered yet but asked a couple of times.

What camera do you use??

If it's got a FP shutter it may be a shutter problem, leaf shutter, not likely.

paul ron · Mar 4, 2018

looks like the op is out to lunch.

Ian Grant · Mar 4, 2018

WilmarcoImaging said:
Looks like a focal plane shutter issue to me.

Does not look like lens flare. Does not look like a light leak in the camera. Possibly a processing issue related to chemical coverage on the film. I am going with focal plane shutter problem.

Never seen a large format camera with a horizontal focal plane shutter, 35mm with a cloth shutter yes

Ian

John Koehrer · Mar 5, 2018

Ian Grant said:
Never seen a large format camera with a horizontal focal plane shutter, 35mm with a cloth shutter yes

Ian

IF it's a Speed Graphic and the film in landscape format the shutter travels across the long dimension. Of course if the
camera's been rotated well, still does..

WilmarcoImaging · Mar 5, 2018

Ces1um's explanation also sounds possible.

4x5 Lens Flare? 50% of Photos have it. Opinions?

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