Good evening everyone. I have shot a Penxtax K1000 for years, and recently purchased the K10D. I do enjoy it quite a bit. It came with a kit lens (18-55). I was not too impressed with the quality of the pictures on the kit lens, but was impressed when I used some of my manual lenses (list below) from the K1000. I would like to purchase a lens (perpaps 70-210) that is fully automatic on the K10D. Budget to $500. I primarily shoot outdoors (fishing, wildlife). Thanks to all for your input.