Re: What lens do you find is on your *istD most often

[Joseph Tainter]

Of course! The DA 16-45 f4. This is a superb lens, and certainly one of 
a handful of Pentax's best zooms ever. If you use zooms and can afford 
it, get it. The DA 18-55 will not be as good: Note the difference in 
price, and be guided thereby.

Most used prime? It's a toss-up between the FA 31 and the FA 77.
Joe