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Question: Medium Format Cameras

Actually I don'tthink I have a specific question about the 645 AFd - after seeing the auto focus is slow. I won't go into the reasons I am considering an auto focus, just that I am. I've used a very old Rollei - with a tripod and focused at waist lever. The 645 looks like it just has TTL capability.

The Pentax AFd looks very easy to use, but is also TTL (not waist)
What is an easy-to-use medium format, AFD (digital capability for eventually would be nice too)
any suggestions - looking for $2000 or less used with a 75 or 80 mm lens to start.