T3D Re: extending MAOFD to projection

[john bercovitz <bercov@xxxxxxxxxxx>]

> I've heard over and over that I need to put less depth in my slides if 
> I want to project them.  The common number I hear is "half as much."
> 
> How do I reconcile this with the MAOFD formula?

All you need to do is change the allowable on-film deviation to suit.
1/30th of the focal length (1.2 mm in the 35 mm lens system) should
work for projection, and if you want to try twice as much for hand-
held viewing, then use 1/15th which is 2.3 mm.  On the maofd spreadsheet,
just insert 2.3 mm instead of 1.2 mm in the cell where it says "Max. 
allowable on-film deviation:"

John B


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