about | support
home
 


  Reviews by: brockwhittaker  

View profile View recent posts View reviews Add brockwhittaker to your Buddy List
Sigma 18-200mm f3.5-6.3 DC OS

18-200OS
Review Date: Nov 25, 2011 Recommend? yes | Price paid: $359.95 | Rating: 7 

 
Pros: Sharpness from 18-50mm, Accurate Colour Reproduction.
Cons:
Bad Focusing past 85mm, Heavy Vignetting, Chromatic Aberration, and Noticeable distortion at 18mm.

I purchased this lens about 8 months ago to compliment my T3i. It is a nice step up from the 18-55mm Canon kit lens. It is definitely a lot sharper than the kit lens at 18mm, and still pretty sharp through 50mm. Though, past 50mm, the quality degrades pretty quickly. The images past 50mm are very flat, the contrast is not so great, and the focus does not lock on well. The focus is incredibly noisy with this! I'd recommend this for landscapes, not so much for the 135-200mm range.. If you stop it down to f/8 at 200mm, then you can get decent sharpness. The lens is slow at f/6.3.

Here's some sample pictures so you can judge for yourself:

18mm:http://www.flickr.com/photos/brockwhittaker/6362331599/in/photostream

50mm:http://www.flickr.com/photos/brockwhittaker/6394826959/in/photostream

144mm:http://www.flickr.com/photos/brockwhittaker/6299005187/in/photostream

200mm:http://www.flickr.com/photos/brockwhittaker/6312091943/meta/in/photostream/

There are full sizes of these photos if you click on "more sizes"