...
There is evidently lots of experimentation going on grafting old film
lenses to digital cameras and getting too sharp results. So there is
some use of Saran wrap from the supermarket over the lenses to get
things back to looking like film. It is important because millions of
...
Winsor Crosby
Long Beach, California, USA
mailto:wincros@xxxxxxxxxxx
One difference between film and digital is that a lens can't be
too sharp for film. For digital a lens needs to be less sharp
than the sensor resolution. As spatial frequency increases, film
degrades smoothly to 0% MTF. Digital hits a resolution wall, then
aliases, creating nasty artifacts. Some of the better digital
cameras intended for use with film lenses, like the Kodak high
end cameras have antialiasing plates over the sensors to blur the
image.
Paul Farrar
Did not know that. What a marketing windfall. Cheap lenses make for
better digital. Wonder why the cameras are so expensive. Supply and
demand, I guess.
--
Winsor Crosby
Long Beach, California, USA
mailto:wincros@xxxxxxxxxxx
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