Posts tagged Canon 100-400 I vs II
Canon 100-400mm f/ 4.5-5.6 IS II Review

Prior to the introduction of the 100-400 f/ 4.5- 5.6 IS II, Canon has had an apparent gap in their telephoto lens lineup.  The previous version was a slow- focusing lens, which caused photographers to opt for either fixed focal length offerings, shorter zoom options, or lenses made by third- party manufacturers.  Canon drastically improved the performance of the lens by enhancing the sharpness, autofocus speed, and some other characteristics.  However, the new lens also has some negatives. 

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