Re: paleonet Digital photography again

[Stefan Bengtson <stefan.bengtson@xxxxxx>]

At 09:36 +1100 2001-10-30, Stephen Carey wrote:
>A geologist-photographer friend tells me that when interchanging 
>lenses from a conventional camera to a digital camera, there is a 
>reduction in the field of view.   This means that if one wanted to 
>photograph with a digital camera the same field of view as was 
>captured with a 50 mm lens on a conventional camera, a 35 mm lens 
>would be needed.   Is this the observation of people on Paleonet who 
>have interchanged lenses?
>
>The friend does not know why this difference in behaviour occurs. 
>Does anyone have an explanation?

It's because the CCD chip is not the same size as a 24x36 mm frame.

Stefan
-- 
Stefan Bengtson
Senior Curator (invertebrate fossils)
Swedish Museum of Natural History
Department of Palaeozoology
Box 50007
SE-104 05 Stockholm
Sweden

tel. +46-8 5195 4220
      +46-8 732 5218 (home)
fax  +46-8 5195 4184
e-mail Stefan.Bengtson@nrm.se