The Tokina 80-200 f2.8 is fast enough on my z-1p, providing you don't focus from infinity to close up and back again repeatedly. If the subject distance changes at a regular speed, then the AF is as fast as any other lens. It tracks a moving vehicle at 60-70 km/h easily. I can't comment on the Sigma unfortunately, but the Tokina is built like a tank. Heavy, but very well built.
Cheers Shaun Canning Archaeology Department La Trobe University, Bundoora, VIC, 3086, Australia. Ph: 0414-967 644 e-mail: [EMAIL PROTECTED] -----Original Message----- From: Sylwester Pietrzyk [mailto:[EMAIL PROTECTED]] Sent: Tuesday, 19 November 2002 06:54 To: [EMAIL PROTECTED] Subject: Tokina ATX PRO 80-200 or Sigma EX 70-200? Hi, I know, I know - I am boring. But I am hesitating between buying Tokina ATX-PRO 80-200/2.8 and Sigma EX 70-200/2.8. I know they are both very good optical performers. But can anybody tell me something about their mechanics? I am especially interested in AF speed, as I've heard that Tokina is slow in this respect. Any experiences or comparisons to "consumer" zooms like SMC-FA 70-200/4-5.6? Or maybe someone has an occasion to compare directly Sigma and Tokina? TIA!!! Regards Sylwek
