RE: Future of Photography (was filmscanners: real value?)

["Austin Franklin" <austin@darkroom.com>]

The sensor size is the exact same whether the information you are garnering
form it is color or B&W.  Your numbers are image file size, which is not the
same as the requirements for a sensor to 'equal' 35mm film, which was the
discussion point, I believe.

> -----Original Message-----
> From: owner-filmscanners@halftone.co.uk
> [mailto:owner-filmscanners@halftone.co.uk]On Behalf Of Jack Phipps
> Sent: Wednesday, January 31, 2001 6:48 PM
> To: 'filmscanners@halftone.co.uk'
> Subject: RE: Future of Photography (was filmscanners: real value?)
>
>
> Unless it is color. Then it would be:
> 24mm/25.4=.944 inches x 5080 = 4800
> 36mm/25.4=1.417 inches x 5080 = 7200
> 4800x7200x3(color channels) = 103.68 meg 8 bit image
> 103.68 x 2 = 207.360 meg 16 bit image
>
> However, you should be able to get by with a much smaller
> resolution scan
> (<4000 for sure).
> Jack Phipps
>
> -----Original Message-----
> From: Austin Franklin [mailto:austin@darkroom.com]
> Sent: Wednesday, January 31, 2001 1:42 PM
> To: filmscanners@halftone.co.uk
> Subject: RE: Future of Photography (was filmscanners: real value?)
>
>
> > As for the resolution needed to equal 35mm film, I think I
> > have seen it quoted
> > that it would need about 8-10 Megapixels.
>
> It is quite simple to calculate, and, of course, depends on
> what film you
> want to try to 'emulate'.  At 5080DPI Plus-X does not reveal
> grain.  That
> means 5080 x 1 x 5080 x 1.5 = 38.7 megapixels.