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[photo-3d] Scanner test files


  • From: "David W. Kesner" <drdave@xxxxxxxxxx>
  • Subject: [photo-3d] Scanner test files
  • Date: Mon, 1 Jan 2001 22:06:35 -0700

Jim Harp asked that I do a few tests of my new Epson 
Perfection 1640SU Photo scanner and post them in the files 
section for anyone that is interested. I have done that and 
they are there in a folder called <Epson 1640SU Photo Scanner>.

One image is a full scan and the other is a zoomed in portion. 
The full scan is just to show the overall image and was 
scanned at 72 dpi to a final size of 640x528. It is a minimal 
compression jpeg, but is still large at 448k. The zoom is also 
640x528 but it is from a scan done at 3200 dpi to a final size 
of 3450x2850. It is an uncompressed tiff, and is also large at 
748k.

The original image was taken with an RBT X3A using Pentax 28-
70mm zoom lenses on 35mm Fuji Velvia film (50 ASA chrome). It 
is mounted in an RBT 7p mask (with the white half to the 
front). The scan was done on left chip while still in the 
mount. The unsharp mask and autocorrect from the Epson Twain 
driver were used, but no other image enhancement was done. By 
the way the file name "TLW" stands for "Tree Limb And 
Waterfall". This image was my highest scoring acceptance at 
the DGS Exhibition.

If anyone has any questions or would like me to try any other 
"tests" with this scanner, please let me know.

That's all for now,

David W. Kesner
Boise, Idaho, USA
drdave@xxxxxxxxxx