Hi Guys, New member here and a bit of a newbie in the mad world of photography as well.
I have a 650D and this 2 month old Sigma 10-20mm F4-5.6 DC HSM is driving me a bit crazy. I concede that i was a little paranoid about getting a "bad" copy even before i purchased one. Maybe it's that or a valid reason but i do not feel completely satisfied with the results i am getting with it. I have put up a few sample images on Flickr.
All photos were handheld. The Exif data is included in the links.
Admittedly i was initially using the widest apertures (beach pictures) and later switched to narrower apertures(Cricket match)
I hope someone who's used this lens extensively could look at the images and advise me regarding the IQ. I even took it to the shop i bought it from because i was concerned about the general "softness" of the images. They took a couple of shots of a close object and said it was fine after looking at the LCD
I am essentially trying to determine if this lens needs to go back to Sigma for calibration or not. Please help! Thanks.
EDIT: Some further testing based on advice received in this thread. A tripod was also used. Please see link below