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[OM] ( OM ) examination of transparencies of targets

Subject: [OM] ( OM ) examination of transparencies of targets
From: "Brian Swale" <bj@xxxxxxxxxxxxxxx>
Date: Wed, 9 Oct 2002 10:33:26 +1300
Hi folks,

Some months back I made transparency photos of Patterson Photo 
Resolution targets (or whatever they are called), to test several of my lenses.

Then I was faced with finding a satisfactory means of examining these slides.

I projected them on a screen, but soon gave that up as a method as it 
quickly became apparent that my  projector lens was not up to the task, and 
I could not find a substitute that could reliably be described as being 
significantly better. No-body knows, or if they do, aren't telling !!

Dreammoose suggested using a microscope. I *could* ask an old work 
colleague if I can invade his lab for this purpose, but I am reluctant to do 
so. 
An alternative is the amazingly inexpensive pocket microscopes marketed 
by Edmund Scientific. Two powers - 20?x and 50x.

Does any list member have experience to advise me what range of 
magnification I might find suitable for this purpose? I want to count lines per 
mm on the slide.

Cheers,  Brian

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