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Sigma 70-200mm f2.8 EX APO IF HSM

Review Date: Oct 14, 2003 Recommend? no | Price paid: $699.00 | Rating: 6 

Pros: Seems sharp, fast (Nothing to compare to, though)

Just bought the Sigma 70-200 F2.8 APO EX lens. Using it on a Digital Rebel. Seemed to work fine, then tried it on AI Servo and it seemed that it 'flipped out'. Wasn't sure if it was a problem or if I just wasn't used to the autofocus moving that much glass around 'quickly'. But looking through the EXIF data on the photos, the lens is not properly communicating the focal-length to the camera! I took the camera outside and shot from 70mm all the way through 200mm and looked at the data, and after 146mm, the camera jumps to 415mm! It continues through 431, and ends at 456mm focal length when the lens is actually at 200mm. I assume that the focal length of the lens is taken into account with the focusing software? Anyway i'm sending it back, guess I'll have to wait a while and get a $canon$ lens.