Worth looking at on the 135mm f3.5.
Quote the interesting bit .... " This highly portable Zuiko tele-lense has built among the users with a fine reputation in able to deliver
uniform image quality throughput the entire focusing range with high resolution and contrast for maximum edge-to-edge sharpness across all aperture range from f/3.5 to f/22. As one of the smallest lenses capable of producing true telephoto effects, with additional features in a practical design, excellent lense handling, a moderately fast maximum lense speed and a highly affordable price, it is an ideal addition to any photographer's equipment as well as a perfect lense to start off as a second lense for beginners. "
http://www.mir.com.my/rb/photography...mls/135mm1.htm
Don