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Guest
02-19-2005, 02:51 PM
Hi,
I built a new camera a few days ago and it roughly looks like this:

http://www.vorndabei.de/dielochkamera/kamera/roehre.jpg

I took a couple of photos and there's always two white stripes in the middle of the exposure. My first shot is attached to the post. I painted the inside with black matt paint.
Has anyone had similar problems??
Any help greatly appreciated.
Thanks, Martin Attached files http://f295.f295.org/uploads/pict0073_1451.jpg (http://f295.f295.org/uploads/pict0073_1451.jpg)

dvoracek
02-19-2005, 03:52 PM
I'm not much of an expert on curved film planes, but when I use glossy paper in a curved film plan camera, I get the same two stripes. caused by internal reflections of the paper surface.

Guest
02-19-2005, 09:04 PM
I did use glossy paper.
That the glossy paper causes reflections makes sense.
I don't really understand why it causes these two stripes but still it's a good idea to not use glossy paper next time to find out whether that helps...

suttonjp
02-20-2005, 10:51 PM
I have a Merlin paint can camera that does the same thing with glossy paper. I've never tried matte paper, but it doesn't happen when I use sheet film.