Quote: Glee46: I was looking at the 28-75mm 2.8 for my K20D. Did you even get it to work?
I first shot the 28-75, 4 GB worth, indoors, mostly as a portrait lens. Most of the shots were ruined due to severe FF issues. Since then, I have only shot the lens outdoors, where it works focuses fine. I realize, though am very reluctant, I need to ship it back to Tamron for adjustments.
Quote: glee46: How does the 17-50mm work on your K20D?
It works splendidly, and it was my first copy of the lens. In here
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/31955-tammy-cl...ml#post1354739 you will find numerous shots with the 17-50.
Quote: glee46: Any lens you might recommend in place of the 28-75mm for k20D?
If you want a 2.8 lens, and prefer the 28-75mm range, I would suggest getting the Tamron 28-75. It is a great lens, which you will not beat IMO--when you weigh all the factors. You really need to ask yourself these questions:
What focal range is most important to me?
Do I really need a 2.8 maximum aperture lens?
How much money do I have to spend?
What are your answers to these 3 questions?