Sigma EX lenses

Olegis wrote:
I also have the 15-30, it's a great lens - wide and sharp. The only downsides of it are :
1. Flare - you have to carefully control the light sources you're putting inside the frame.
2. AF/MF switching mechanism is a little strange at first, but once you get used to it - it's OK.

Overall it's wonderful lens. You can have it for $480 here (about $100 cheaper than in B&H and Adorama).

You can see some examples made with this lens in my galleries (the link is in the signature).

Olegis,
I also own a sigma 15-30. Recently I have had some backfocus problems with it. Do you normally shoot in Av/Tv? what is your normal shooting range and the apertures?

I have a 50-500 EX and I find it to be a superb lens, sharp and with fast AF. I have never had an error or any problem with it, like all Sigma EX lenses the build quality is great ! I own serveral Canon Lenses including L lenses so I am comparing it with other good lenses.

I normally use this lens for nature (mostly bird) shots but have used it quite a lot for motor and motorcycle races and airshows.

I have used it on the following bodies without ANY problems: 300D, 10D, 20D, 1Dmk2 and 1DSmk2.

I am sure you will be happy with it as long as you except that it is a long lens and might require support if you shutter speeds are not high.

Rudi

I agree with all the above regarding the Sigma 50-500. It is a superb lens and built like a tank. You can not go wrong for the price.

Hi.

I shoot almost exclusively in Av mode with pretty small aperture values, around f/8, f/10 or such. Lately I'm using the longer side of the lens for some reason ...