Wow! Thanks for all the input guys. This is very useful. Helps a lot. Way back in my grey matter I had a feeling around 100 mm would be the sweat spot. I will be mainly be using the lens for plant/flower/bugs on flower type of shots. I'll be shopping today for one. It would seem by the comments that some non-Pentax lens are good as well. Never really considered that until now.
AF is not a requirement. It will be used mostly for macro. Next on the list after this purchase is a regular telephoto. :) Longer than 100mm of course. Chad
