Fast walkaround zoom for D7100?

Started Apr 4, 2013 | Questions thread
PepsiCan
Contributing MemberPosts: 739Gear list
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Re: Not better, different.
In reply to ajamils1, Apr 4, 2013

ajamils1 wrote:

So is Sigma 17-70 f2.8-4.0 HSM "C" a better option instead of the Sigma 17-50 f2.8 ?

Not better, different.

The perfect lens does not exist. Every lens has flaws and you need to buy the lens with the flaws that do not bother you. To illustrate:

The Sigma 17-50 and Nikon 17-55 have a constant aperture and are fast lenses, but the "flaw" they have is their restricted focal length. Other lenses have a longer focal range, but their apertures are variable, which can be bothersome when you zoom in and out (the aperture changes when you zoom in but does not go back when you zoom out again). The Nikon 16-85 is a lens that has a long focal range, is sharp corner to corner, but is slower than the 17-70 from Sigma. The Sigma has a shorter focal range though. Other lenses have distortions, coma or chromatic aborations.

As you can see, it is all give and take. So, you need to make a priority list of what is most important for you.

If focal length is, then the "super zooms" must be on your shortlist, but if image quality is, then they probably shouldn't be.

But if you don't mind switching lenses, you can buy a combo. How about a 17-50 f2.8 and a Nikon 55-200 or 55-300 zoom? Or a 16-85 and 35mm f1.8 DX for (group) portraits? And do you have a view on what focal length you usually take photos at? Perhaps from a previously owned camera or compact?

 PepsiCan's gear list:PepsiCan's gear list
Canon PowerShot S95 Adobe Photoshop Lightroom 4 Nikon D7100 Nikon AF-S DX Nikkor 16-85mm f/3.5-5.6G ED VR Nikon AF-S DX Nikkor 35mm f/1.8G +5 more
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