Shel Belinkoff asked: > > Do other quality digital cameras offer FF CCD that can be > used with the lenses from their SLRs?
No - all current digital SLRs built around 35mm bodies have sensors smaller than full frame. This gives a focal length multiplier for all lenses - somewhere between 1.3 and 1.5 is typical for the most recent modles (more on earlier models). > What happens with a telephoto lens - is, for example, a 300mm > lens longer or shorter when used with a less than FF CCD? Longer, effectively. The lens produces an image of exactly the same size, but only the central portion of that image falls on the digital sensor. The effect is exactly the same as taking the central portion of a 35mm negative and using that to produce a standard print. The one good thing is that the f-stop remains the same; that 300mm/f2.8, used on the latest bodies, acts like a 400mm/2.8. (Caveat: on some digital bodies there was an absolute maximum aperture limit from the internal camera design, so some lenses can not be used at their full aperture. I don't believe any of the recent bodies suffer from this problem). > Also, how does Fuji (?) get 6mp from a CCD that is only rated at 3mp? By interpolation (a less charitable answer would be 'by lying'). > Doesn't that screw with quality, especially with larger prints? Yes (according to reviews posted on the digital camera review sites). -- John Francis . . . . . . . . . . (650) 565-4427 MyWay.com 1070 Arastradero Rd, Palo Alto, CA 94306 Hello. My name is Darth Vader. I am your Father. Prepare to die. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
