Do you mean the current autofocus 200-400? Or is there a manual focus 200-500? Anyway, it doesn't appear that the 200-400 is available in Pentax AF mount.
Sigma makes a 135-400, 170-500, and a 50-500 in Pentax AF. Tokina has an 80-400. Joe - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
