Choosing lenses - aperture or focal range?

Started Sep 20, 2012 | Discussions thread
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phaedin
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Choosing lenses - aperture or focal range?
Sep 20, 2012

What is better to look for when choosing a lens ?

Obviously sharpness is the most important but if they are equal for both what is the next most important or most desirable thing for general purpose standard zoom lens?

Choices are 16-50 f2.8
17-70 f2.8-4
16-105 f3.5-5.6

Thanks for your advice

 phaedin's gear list:phaedin's gear list
Nikon D7100 Sigma 17-50mm F2.8 EX DC OS HSM Tamron SP 70-200mm F/2.8 Di VC USD
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