I would like to replace my starter kit with the a.m. lens, expecially for concert pictures. Usualy I'm trying to stay in the pit or in first two row in front of the stage. I prefer AF instead of MF.
I have a Pentax K-R with starter kit DAL 18-55 and DAL 50-200.

What do you think?

My new Pentax K-R is my first DSLR camera and ... I love it!!!