Originally posted by mando I know: Probably no such thing.
This is a basic truth. Don't say it - and then continue to act as if it's not true. It's true. There's no do-everything-well lens. If you want that, get a good compact fixed-lens camera.
Quote: I have an *ist DL with the 18 - 55 lens that came with it and then purchased a 70 - 300 promaster lens. Neither of these lenses have large enough aperture settings to allow for the blurred background that makes the single subject photo "pop." I have read that the Sigma 70 - 200 with a 2.8 aperture is quite good, but I would prefer something in the 50 - 125 or 150 range. Any suggestions?
I'll second what others have said: the Pentax DA* 50-135 f/2.8 is a very good lens. But it is NOT a "do everything" lens, and since it doesn't do everything, we can't say that it does everything well.
You can't get a lens that does everything really well. You can get lenses that do one thing really, really well (like the Pentax 40 mm f/2.8 limited or for that matter almost any Pentax prime). You can get lenses that do a number of things well. But if you want a lens that can do almost everything, the best you can hope for is that it will do everything
pretty well. If you can live with that, then get one of these lenses: the Pentax or Tamron or Sigma 18-250 f/3.5-6.3. That's as close to "everything" as you'll get.
Will