Can lenboard cause light leak?

[Pete Andrews]

There's no way that a leak around the lensboard would form a thin white line around film at the back of the camera.It looks as if you're using some fancy sort of filmholder to me, and not a standard double darkslide, judging from the pattern around the film. My guess is that your filmholder has a shiny metal edge that's reflecting light onto the film in a thin 'halo'. And since it's all of half a millimetre wide, and the film imprint cuts further into the frame, why worry about it?

[Michael A.Smith]

Those lines are from your holders, as others have pointed out. Take some emory cloth and sand the edges of the holders next to where the film goes. That will dull them down and should solve the problem.

[violin]

Thanks very much to everyone, I'll sand down the fimback as Michael suggests and do some tests.

Adrian