I just received this lens earlier in the week and haven't had a chance to really use it.
It's my first Tamron and I'm impressed with the 6 year warranty figuring any company that's willing to stand behind their product for that long has to be pretty confident. The reviews I've come across are mixed and it seems that the Sigma 10-20mm 4-5.6 does better. When I look at reviews on Amazon I'll see over 200 for the Sigma PK mount but only one for the Tamron PK, so it seems that those seeking a wide angle choose the Sigma way over the Tamron. When I search this forum I'll find a thread with both lenses but the Sigma has 3 pages of posts since last December and the Tamron has only 5 posts. The lens was reviewed 34 times in this forum's lens review section with a 9.09 average rating while the Tamron isn't listed at all.
So, this picture doesn't give me much confidence in my choice. I plan to take some pictures. To my untrained eye I'll probably think the lens is OK but I'm concerned that I might be disappointed later on as my skills develop. I have about 20 days to return the Tamron and the Sigma will cost another $75 if I go for an exchange. Also, the Sigma comes with only a one year warranty.
So if you were to buy a wide angle in this price range ($350-$450) would it be the Tamron 10-24 or Sigma 10-20 4-5.6 or some other?
Last edited by seachunk2; 11-13-2010 at 05:30 AM.