I just bought one of these. It arrived this morning. http://www.bdimitrov.de/kmp/bodies/SF/SF.html I bought it (and some 3rd party KA/KAF2 mount zooms) as an autofocus body to go with my existing P50 and the couple of Pentax K-mount lenses I already own. I was pretty shocked by how huge it is in comparison to the P50 -- it's a monster. On paper it doesn't look to measure that much larger than the P50 but in the flesh, it's much bigger. Anyway, anyone used one of these?