I have been testing the fantastic *ist-D with a variety of lenses. So far, the Pentax 80-200/2.8 FA and Pentax 200/4 FA Macro have been stunning.....beautiful. Tamron 24-135 not bad. Pentax 20-40/4 FA very good. Tamron 80-200/2.8 superb (adaptall pk-a mount works just fine).
I believe the quality/resolution of the top Pentax & 3rd party lenses goes well beyond what a 6mb sensor can display, from my tests so far. I would like more people on the list to test the best Pentax and 3rd party lenses and give us feedback. Pentax has produced a fantastic digital camera, and at $1500 ($1700 some places) US, is priced about right. I don't like all this whining on the list re non-A lenses. If you haven't bought a new lens since 1981, you are not keeping Pentax in business anyway. No other company has campatibility back to the mid-1980s like Pentax. And the *ist-D is very competitive with any Canon SLR right now. Robert James USA