> > Modern colour negative film resolves around 100 line > pairs per mm image height, which boils down to the > equivalent of 34 megapixels. > > Which is not what you get, because very many lenses > even high end primes do not resolve more than 50 line > pairs, which is equivalent to 9 megapixels. > > Cheap zoom lenses even only resolve 30 line pairs > per mm, which would be 3 megapixels. > > Note: These are real megapixels. Calculating up and > down interpolation success and loss, a 3 megpixel > camera will resolve the equivalent of slightly over > 2 megapixels (two thirds) as a rule of thumb. > > So, the EOS-1D is approximately what you get from > state of the art colour negative film in combination > to consumer class zoom lenses. > > The above calculations are taken from the current > issue of c't magazine, Germany's most reputated > computer magazine, which lately shows excellent > expertise in photography. > > -- > Michael Quack <[EMAIL PROTECTED]>
Hi Michael, If what you are saying is true, then why do 200MB drum scans look better than 50MB drum scans? Why is it easy to see such a large improvement in image quality with a simple change to higher resolution film with better contrast and finer grain? The only conclusion I can come to is that lenses are not the limiting factor in image resolution, film is. Regards, Chip Louie * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
