<p>I purchased a Sigma 24-70 2.8 lens from Amazon. No, I don't know right now who it came from. Anyway... it works ok most of the time, but sometimes it has a hard time auto focusing. It will "search" and focus in and out and won't settle on anything. No, this is not always in the dark. It has happened mid-day. Also, sometimes when it seems to have focused, when I get to the computer and look at my photos, some of them are not focused all that great. <br>
Is this a Sigma issue and should I just stay away from them from now on? I rented this same lens a few times and never had problems.<br>
Should I send it in to the repair service? I only paid $379.99. Maybe that should have been my sign???</p>
