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Re: filmscanners: Scanner resolution (was: BWP seeks scanner)
> Yes, Austin, that is how the Nikons work. They have 4 sets of LEDs, R,
> G, B and IR. It is, in part, why 1) Nikons tend to exaggerate the dust
> and dirt, and 2) why they have some problems with DOF on the edges due
> to the low LUX intensity of the LEDs, leading to the need for a very
> wide open lens not allowing for enough DOF for the curvature of much film.
Have you measured the light intensity of the raw Nikon LEDs, and compared
this to the intensity of the filtered light from a conventional scanner? It
would seem that the LED light source can be two to three stops less bright
than a conventional lightsource (before filtration) and still supply the
same illumination level to the CCD's.
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