Originally posted by séamuis why was the ME F ill-fated? I don't think you quite understand the point of the ME F back then. it wasn't designed to bring AF to Pentax with a specific system. it was designed as a 'guinea pig' of sorts. a test of the system and more importantly to test the appeal of AF with consumers at the time. and designed to bring recognition and intrigue to Pentax. it was, what it was. in lens motors didn't make much sense then and for a lot of reasons doesn't make much sense now. it did what it was supposed to do, and works quite well, still to this day. in good light, its rather fast and accurate. a great camera, the first to give us the 'green hexagon' focus confirmation.
Okay fair enough - 'ill-fated' probably wasn't the best way of describing the ME-F - and I didn't really mean it that way. I was actually quite intrigued and impressed by the ME-F myself - both at the time and now.
What I was trying to illustrate (and perhaps the ME-F wasn't the best example) is that there seems to have been a lack of a logical progression in terms of building up the Pentax system in the K-mount era.
The fact remains, we had a professional camera (LX) that couldn't make full use of the available lenses (A & F) and which in turn didn't match the environmental sealing construction of the LX.
There were different winders, motors, remotes, etc for LX, MX, A-series and SF-series - none of which seemed to offer as much forward or backwards compatibility as they might have.
For example, any reason why the MX and ME had different winders? You'd be hard pressed to tell the winders apart if you had them side by side and yet they were completely incompatible and probably shared few common parts - despite being designed for cameras that released at the same time.