----- Original Message ----- From: "Paul" Subject: Re: Coming to terms with *ist D lens mag factor?
> Hi, > > I think its a bad idea to think of it as a magnification factor, as its > really cropping the edges. One thing that annoys me is that even though > a 50mm becomes the right length for a portrait lens, its not as > flattering as really having an 85mm focal length on the camera. Also my > standard lens is a 24mm lens and using this lens as a 38mm (i'm using a > 10d) the images are no where near as compressed as they would be with a > 35mm or 40mm lens on 35mm file. Try using a 105mm lens on a 6x7, or a 150mm lens on a 4x5. You can't compare APS format digital to 35mm that way. It's a different format, with some advantages and some disadvantages. I find that with 6x7, I can't secure sufficient depth of field to do the type of landscape work I do, and I can't secure fine enough grain and sufficient detail to get the results I like. Yet I can secure sufficient depth of field and get the grain/resolution I like with 4x5 inch. William Robb
