----- Original Message -----
From: "Godfrey DiGiorgi"
Subject: Re: Scanners
On Sun, Jan 31, 2010 at 1:06 PM, Ken Waller <kwal...@peoplepc.com> wrote:
Of course, with a K10D and a macro lens capable of 1:2 magnification,
you can set up a copystand rig that is both fast and produces 10Mpixel
images.
I've had very good results copying prints with my K20D. The only downside
has been the time for setup - getting things perpendicular, adjusting the
tripod for the proper distance.
I use a flatbed scanner for prints. A 4x6 print at a modest 1200 ppi
is a 33 Mpixel image, way more than needed for most things and plenty
of overhead for editing. No worries about setting up copy lighting,
reflections, focusing, etc.
When I use a copystand and camera, it is made perpendicular to the
base by using a hot shoe mounted two-axis bubble level. Tripods are
kinda clumsy at this job. I've shot negatives this way with the
copystand and macro lens using a flat-panel light box as a light
source, with good results. It works particularly well for some of my
ultraminiature negatives ... The L1 fitted with 1.4x teleconverter and
35 Macro can achieve a 1.4:1 magnification, which nets me a 7.5 Mpixel
image of my 8x11 mm Minox negatives. That's more data than I can get
out of a 2900 ppi film scanner ... 1.1 Mpixel ... and well worth the
fuss.
The best copystand I've used was one that I cobbled together from an old
Omega enlarger. I took the head off of it and replaced that with a tripod
head.
It would probably be pretty easy to make a slide copier by taking the head
from the enlarger and turning it upside down on the baseboard and using that
as the transilluminator.
William Robb
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