what do people think of the 70-210 F/4 (constant)
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|80-400mm constant aperture - is it possible?||Lens Lust||Dec 4, 2014|
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|Variable vs constant f stop||Lens Lust||Apr 15, 2009|
|Nikon AF 70-210mm f4 (constant)||Lens Lust||Dec 23, 2008|
|Constant f/2 zoom lens for full frame: impossible?||Lens Lust||Dec 19, 2008|