----- Original Message ----- From: <dave6134@xxxxxxxxxxx> ...it is about time : to forget all the 35 mm format jargon and move on. Does anyone refer : to a crop or multiplier when comparing MF to LF image sources? This : 35mm comparison was started because there is no standard digital : format. For years camera makers other than Eastman Kodak were : restricted to formats based on available film size but now digital : camera makers can manufacture any format they think can make a profit. exactly! no one ever gave relative focal lengths for the various half frame and 110 cameras, any PJ running a motordrive half fame knew what the angle of view was, period. : The actual focal length is no longer useful in deciding how a : lens will meet a digital photographers needs. that's probably due to the introduction of mass marketed zooms (!) since in the years of the primes an inkling of an idea was needed, as well as the actual glass to fulfil the idea ;-) now that there are massive zoom ratios (28-200 or more) it's simple. Zoom in, zoom out. a guide to magnification ratios. http://tinyurl.com/8mq87 k
