Originally posted by Mango Thank you for the encouragement. I've been thinking about getting DA50-135 but because it's such an expensive lens for a newbie, I'm thinking about renting one first to see if I can handle it. I've read all kinds of reviews on this and other zoom lenses with f/2.8. Based on the pictures I took during the last season with the kit 50-200, I never seem to need anything as long as 200mm. Hope I'm on the right track...The season starts in September and is coming up quickly!
A fairly inexpensive, fast lens is the older Pentax 135;2.5 or 135:2.8... of these the Takumar 135:2.5 is best I think. The Takumar-Bayonet 135:2.5 is less highly regarded but still pretty good. Check out KEH.com.
Another option might be the Rokinon 85:1.4 if you can get close enough.
These are all manual focus lenses so you must learn to prefocus & catch-in-focus - that's ok because AF can't usually keep up with gymnastics.