[photo-3d] Re: RBT Mounts and film curl

["John Goodman" <jgood@xxxxxxxx>]

Dr.T's advice concerning the malleability of the 0.5 RBT pinbars 
is worth taking. Areas on the pinbar plastic can be deformed by 
pressure as needed, to improve the fit. The 1.0 and 2.0 pinbars, 
being a harder plastic of a different type, seem to resist this 
kind of manipulation.

As for curl or cupping of film, it's been my experience that 
environmental factors and time are important. If the chips in 
my sorting boxes aren't flat after cutting and are therefore 
difficult to mount, waiting a day or two, depending on the 
weather, can make a great difference. Film was flat when it 
was made, and this seems to be its natural, preferred state 
when given time to reach equilibrium. Curl along either axis, 
due to packaging or processing, should quite naturally relax 
and even out, given the right environment, even if the film isn't 
held under tension or reverse curled. Don't you find, if you ever 
remount views, that detached chips from past mountings are 
dead flat, and remain so when detached?       

John Goodman