Choosing Manual Focus Lenses - Part 3: Zooms

A top-quality aftermarket Vivitar Series One zoom flanked by the OEM Olympus and Minolta 75-150 f/4s

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    Zoom lenses really started to come into their own by the late-1970s and became standard equipment with most SLRs by the mid-'80s. Versatility was the name of the game, with such optics sometimes enabling a photographer to replace up to 3 primes with one lens. However, this was not a free lunch; there were always compromises involved. 

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