Re: getting images from the computer to slides

[P3D John Ohrt <johrt@xxxxxxx>]

Lincoln Kamm wrote:
> 
> Well, I tried shooting stereo images off of my monitor.  It worked!  I used
> an SLR with a 50mm lense, a 17 inch monitor with a resolution of 1024x768.
> I tried a couple of different settings of the camera, but the best one for
> all images shot seemed to be 1/15sec @ f2.8, The next time I shoot I will
> shoot some at 1/8sec @ f2.8, because one of the image pairs was a bit to
> dark, but the rest looked great at the first settings.  I am really happy
> with the results, and will probably not send any more slides out to be
> professionally transfered.

Some ballpark settings:

Film ISO 100

Aperture f/5.6

speed: 1/2 second

Monitor refresh rate 60 Hz


This exposure intergrates about 30 scans, usually "good enough" that you
can't tell where the scans started and stopped.  The more scans you
integrate the better, but you be the judge.  If you are really fussy,
you can drop back to even slower film.


Make sure you boresight the camera, ie put the camera's optical axis
identical to the CRT's.  A hood with baffling improves quality by
reducing reflections and stray light but you won't be alone if you don't
bother.  :-)


> I would not recomend shooting images like this using a smaller monitor, and
> at less resolution than I was using.  I would think the images would be to
> grainy, in fact, if you can, use even higher resolutions.

The size of the monitor doesn't matter.  All that you want is clearly
displayed pixels.  So a 14 inch monitor which can clearly display
1024x768 is as good as a 21 inch monitor in the same resolution.

For those with the bucks, 1600x1200 is better than 1024x768 :-)

If you do a lot of this, the CRT hood method is the way to go.  Saves
set up time.

Good luck.

Regards,
--
John Ohrt,  Regina, SK, Canada
johrt@xxxxxxx


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