I was looking at your pictures of birds in the wild and was hoping for some expert advice. I just got a Tamron 1.4 teleconverter and was wondering what lens you would recommend I purchase to go with it. I tried a Pentax 100-300 zoom with mixed results (mostly very soft/blurry) for pictures of birds at our local (Davis, CA) Yolo Bypass wildlife area. I'm using a k20d and consider myself an enthusiastic beginner. I enjoy using older lenses and have purchased both "A" and "M" series lenses. Thanks for any advice,
Peter Goul