Russell Kerstetter wrote:
so...... if you were to take a photo at 50mm with an 8x10, 25mm and digital, each time moving farther away to keep the same composition, and then enlarge each to the same size print, they will be the same?
No, because perspective will change. Perspective is directly related to camera-subject distance. Now if you stayed in the same place, and shot with lenses of equivalent angle of view, the shots would be identical in composition (The larger the format, the smoother the tonality as a general rule)
also...... so then on a large format, a 50mm is not really wide, it is just larger, because the image coming out of the back of the lens is larger, so you can stand closer than with a 35mm, even though it is still a "normal" length?
No, 50mm is an ultra wide-angle on LF (in fact it's a nice wide angle on MF). Normal on 4x5 is 150mm, on 8x10 it's 210mm. Normal focal length is typically the diagonal of the sensor/film size (50mm on 35mm film is only normal because Leica's first 35mm lens was a 50mm, the true normal for 35mm is 43mm).
Russell
-Adam
