"PeterN" wrote in message
...
1. Leica M Monochrom, with 18 MP black and white full frame sensor. No
need for a Bayer pattern, no AA filter, no interpolation. Low noise
up to ISO 10,000.

Hmmm.... I can see already plans for a Photoshop add-on tool to merge
together three images taken with R,G,B filters. Kinda like a modern
autochrome @ 10000.

It's easy enough to do without any special tool. I did it testing my
theories about what caused certain background effects in the famous
Prokudin-Gorsky photos (http://www.loc.gov/exhibits/empire/); my RGB
merges are athttp://dd-b.net/ddbcms/2001/05/composite-color/.


Interesting experiments.

Why? I'm puzzled that he didn't realise people were doing this over 50 years
ago with multiple exposures on color film using real filters, and the main
aim was to get those colored ripples on water, or rainbow colored clouds
etc. That's the only reason to do it these days too, not try to eliminate
it as David suggests. Obviously Prokudin-Gorsky would have seen this effect
immediately and taken steps to avoid it when he didn't want it.
However if Prokudin-Gorsky used a 3 lens projector, why could he not use a 3
lens camera and take simultaneous images? Are we sure he didn't? The image
of the Nilova Monastery shows no colored ripples on the water or clouds at
all, so either it's been very heavily doctored, or he did take simultaneous
images.

Trevor.