I keep going back and forth, but I really don't think MF lenses are for me. For sale is my OM mount 135mm f/2.8 lens. It's manufactured by Helios, and is a multi-coated lens manufactured in Japan. It has a built in hood, and comes with Olympus front and rear caps. Also included is a OM to 4/3 mount (4/3, NOT u4/3). The elements, both front and back, are in great condition with no scratches, or marks. The lens takes great photos, when you have the patience to get the right focus. Attached is a sample image taken with it. More photos are here. Asking $100 shipped in US/Canada.