"Paul D. DeRocco" <pderocco@ix.netcom.com> writes:
>>>>>>>>>>
It's hard to measure, but just eyeballing it, I'd say that I have easily a
millimeter of warpage on some of them. And it's not necessarily a smooth
domed curve from one edge to the other--some slides have ripples down one
edge. (Although a simple curve of sufficient magnitude would be an adequate
DOF test.)
I've remounted slides in anti-Newton glass mounts, and got somewhat better
focus, but noticeable grain from the glass. However, there are two problems
with remounting. First, it's extremely time-consuming. Second, some of the
slides have ripples in them that even glass sandwiches won't take out. I
really think that increased DOF is the only way I'll ever get decent files
out of these.
<<<<<<<<<<
I wonder if this is your answer:
It looks to be a bit softer than a 2700 dpi scan, but quite a bit better
than the 2450 or 3200, both of which have great DOF...
David J. Littleboy
davidjl@gol.com
Tokyo, Japan
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