Well I had the vivitar out, it's not bad, a little faster as I hoped, but I find the focus to be extremely sensitive on it. Even more so than my 70-300 tamron. I attached a coupel samples, I had to shoot at 800 ISO because of the light. A K-30 is probably high on my purchase list, the K-M doesn't do great at 800, but not bad if you don't blow it up.
For the second game, I shot my 50mm prime from the glass, and actually I found for a lot of stuff, that worked out better. When the play is on the far boards, I might not mind a 75 mm, but they don't really make a 50-75mm.. and I'd hate to lose the sharpness of the prime (and the low F stop, I shot at 2.0) even a 28-75 f2.8 is like $500. Far too much, but I do think it would be the ideal lens for what I have in mind.
Though I did find the Macro version for only about $310
G
that's tempting..much cheaper..
I was looking at the XR Di, this is the XR Di LD Aspherical IF Macro will this affect the image quality or anything in comparison to the simpler one?