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The latest generation of scanners provide 4000-8000 dpi resolution. This level of detail can extract information from a 35mm image that can exceed what can be done with conventional darkroom enlargement. For example, the new Minolta Elite 5400 scanner will permit an enlargement of 18x24 inches at 300 dpi.
Here is the full frame
image, taken with a 12mm lens and scanned at 5400 dpi with the
Minolta Elite 5400 scanner. |
![]() Full Frame |
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There are several things
wrong with the image. The area we were interested is only a small
part of the scene. This was made worse by the use of an ultra
wide angle lens which had the side effect of exaggerating the
perspective distortions caused by tilting the camera upwards. We correct this using the
perspective tool. Notice the fairly extreme adjustment we are
using. The top is stretched to almost double the original
size. |
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After the perspective adjustment we cropped to show only the area we were interested in. In this case the faded advertising paintings on the building wall. By scanning at 5400 dpi
this image will still print out about a 5x7 inch print at 300
dpi. |
![]() Cropped Final Image |
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the street sign shown here in actual scanned pixels is quite
readable even at though it was so small in the
original.
For the curious, the original was hand held at 1/60 second and photographed on 200 speed color negative film. Thus, even better results may be expected with greater care. Being able to scan at such
high resolutions puts new life into film and sets the bar higher
for digital cameras to measure up to. |
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© 2003 Robert D Feinman