P3D Re: Boris on Dr. T's comments on Starosta site philosophy :-)

[bercov@xxxxxxxxxxx (John Bercovitz)]

Boris writes:
> To me, the medium close-up looks almost perfectly ortho in my 17" 
> monitor, about three feet from my eyes.   The visual angle subtended 
> by the image then matches what would have been seen in my f.l. matched 
> viewer (the Pinsharp).

On my 21" monitor, your images come up around 3 1/8" wide with
about 1/4" gap between them.  The closeup image looks good to
me when I'm about 24" from the screen.  I can't get an exact 
figure because I haven't got a clue how much chin your model has.  
I'm assuming what I would consider an average sort of chin length.

If you shot this with a 50 mm (2") lens, and I view it fine
at 24", then this must be a 12X enlargement.  Since 3 1/8"
divided by 24 mm is already a 3X enlargement, I would infer you
cropped off 3/4 of the original image to make the on-screen image.

If your model actually has a much longer chin, then I would agree
with your 36" figure and then say that you cropped off much more
of the original (5/6ths).

John B


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