For a direct comparison to how you're doing I'd suggest picking about 3
slides with different subject material but high contrast (for focusing).
But pick these slides from those you have already scanned.
Then try out your M240 "scanner" and see how closely you can replicate
what the LS5000 has already done. If you shoot at f/11 you may have as
little as 1mm depth of field or 2mm at f/16. Remember that you have to
capture the depth of the curvature of the film.
Examine the slides/film and see if the film curvature is fairly constant
between different images. If so you should be able to pick one very
high contrast image specifically chosen to make focusing easier. Use
manual focus, get it as good as you can one time and then leave it alone.
Scan several slides at f/11 and f/16 and see how they compare with the
LS5000 images. You make the decision based on direct comparison.
You could use f/22 or f/32 to improve the depth of field and (maybe)
focus but you'd be well into diffraction territory there with reduced
resolution.
Chuck Norcutt
On 9/1/2015 11:51 AM, Tina Manley wrote:
PESO:
My Nikon LS5000 is still broken and I haven't been able to get my Imacon to
work yet. I have several thousand more negatives to scan. This morning I
tried using the Fuji X-Pro 1 and a macro lens with my Beseler Slide
Duplicator but I couldn't get the autofocus to work at all. So I got out
my M240 and used it with the 100 Macro lens and the EVF. It's very
difficult for me to focus manually but that seems to be the only choice
right now!
http://www.pbase.com/image/161174100
What do you think? Worth working with or not?
Tina
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