P3D test results

[Tom Deering <tmd@xxxxxxxxxxx>]

First off, I know nothing about camera testing.  I'll admit I may have
blundered.

Summary:  I shot a roll of test photos with three stereo, and I can't see
any difference.  Is the problem my technique, or do these cameras all just
happen to be similar?

I took the three cameras to the roof, and put them on a tripod.   I took a
meter reading, and figured out the correct aperture for each speed.  I shot
the same aperture/exposure sequence on each camera.  The focus was at
infinity, and the subjects were from 200ft to the horizon.  I used the same
roll of film.

Under a loupe, they look identical.  When I put the film under a low-power
microscope, I can't see any difference, either.  The edges seem just as
crisp, the saturation is about the same.  There are no details in one that
are not in another.

What am I missing?  I thought there would be a big difference between
different models, but I don't see it.  Any suggestions for a better test?

Right now I am shooting new test shots at ten feet.  I have generated a
target with graduated fine lines.  I am using a flash.  I'm thinking this
might be a better real-world test for the kind of shots I usually make.
Ideas?

Tom



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