Olympus 35-80mm f/2.8

Article Abstract:

The Olympus 35-80mm f/2.8 zoom lens features grippable zoom rings with bright markings for distance scales. In laboratory and field trials, it was capable of excellent results when tested on its SQF performance, field curvature, distortion, slide sharpness and contrast capabilities.

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Sigma 28-70mm f/2.8-4 AF

Article Abstract:

The Sigma 28-70mm f/2.8-4 AF is an excellent zoom lens that is a good choice for general purpose short zoom work. Its imaging performance is top rate, but it has an above average level of linear distortion. The price is $250.

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Sigma APO 75-300mm f/4.5-5.6 AF

Article Abstract:

The Sigma APO 75-300mm zoom is top rate with some limitations. The manual focus mechanism works loosely and the scales are difficult to read. Images are very sharp and flare is very controlled. List price is $465.

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