Digital BW, The Print

Richard,

According to Roger Clark's site that you quoted, 35mm color films vary 
enormously in their digital MP equivalents. His figures for Velvia are 
somewhere between 8-18MP, Kodachrome 64 6-10MP, Ektachrome 100 and Sensia 
200 4-6MP, and Provia 3200 2-4MP. For 35mm B&W films he gives Tech Pan with 
16MP, TMX 6MP, TMV 4MP, and Tmax 3200 2MP.

So the 1DsII with its 16.4 MP is equivalent or superior to all these films, 
and the D2x is superior to most.

Clark also shows 
http://clarkvision.com/imagedetail/digital.signal.to.noise/ that the 1DII 
camera has a far higher signal-to-noise ration than Velvia 50.

As to dynamic range, Clark shows 
http://clarkvision.com/imagedetail/dynamicrange2/ that the 1DII camera has a 
far higher dynamic range than either of the two films he tested, Kodak Gold 
200 and Velvia 50.

I will agree with your last point, I have loads of faded/torn/scratched 
negs/prints from my parents, and hundreds of missing ones.

Bob Frost.




----- Original Message ----- 
From: "Richard Ross / RH Designs" <richard@...>



 >Resolution of what? From the data I have seen, sensor resolution in 
cameras
 >such as the D2X and IDsII are equal or superior to 35mm Velvia in
 >resolution. We don't yet have sensors comparable to the larger sizes of
 >film, but that is just a matter of size, not resolution, surely.

35mm Velvia requires around 16MP equivalent according to
http://clarkvision.com/imagedetail/film.vs.digital.1.html

The late lamented Agfa APX25 has an even higher resolution than Velvia, and
the dynamic range of film is still higher than digital cameras and not
subject to "clipping".