----- Original Message ----- From: "Sylwester Pietrzyk" Subject: Re: Future DSLR's
> > > Well, I would say, that 200mm lens on APS-sized DSLR will have the same DOF > as the same piece of glass on 35mm camera. One condition - the same camera > to subject distance. At equal magnification, DSLR will have greater DOF - > just because you have to stand at longer distance than you would with 35mm > camera to obtain the same magnification level. Unfortunately I have no idea > how big is the difference in DOF between two formats at one magnification... Depth of field is very closely related to magnification on the film (or digital sensor for the anall retentively inlined). For an APS sized "film" to have a simialr DOF to a 35mm film, the camera to subject distance would need to be increased to keep the subject the same magnification, presuming the same lens is used. This is part of why the multiplication factor for the small sensors is a bit of a pain. William Robb
