I am going to upgrade from the kit lens and have run into a quandary as to which of these lenses I want.
Sigma 18-50mm F2.8 EX DC MACRO
Sigma 17-70mm F2.8-4.5 DC MACRO
I like to shoot outdoor landscapes and close-ups of nature so the wide angle & macro features of both appeal. But also want a lens for some indoor/museum/evening shots.
The prices are similar to each other so that does not seem to be a factor
The 50mm to 70mm zoom difference does pose questions as to how much is the extra 20mm useful. Also how well do they compare for indoor/low light shooting past the widest end?
I guess it boils down to the extra reach of the 17-70mm vs. the constant 2.8 of the 18-50mm. Are there other differences I need to consider for these two lenses?
Thanks
Last edited by nathanjberry; 12-14-2007 at 01:59 PM.