----- Original Message ----- From: "Nick Clark" Subject: Camera shake (was The A-2XS and A 400/5.6)
> I'm still not sure about this. While I agree that on the first image i.e. the sensor or film the effect will be the same as for the 800mm lens, as the enlargement to a same sized print is greater for the *istD compared to the 35mm film camera, you are also enlarging the shake which will then be comparable to the longer lens. After all a selective enlargement of a negative has the same effect with regards to foreshortening as fitting a longer lens if the camera position doesn't alter. > Or am I mistaken? I think you are right. The degree of sharpness loss that a format can take for any reason relates directly back to how many magnifications of enlargement that must be made from that format to make a viewable image. I have never said anything about camera shake factors with the smaller format, I just rail at the concept that a 50mm lens is really a75mm lens as soon as it gets stuck onto the istD William Robb
