Polaroid 900mm f/8 Mirror Lens & 2x Teleconverter (= 1800mm) with Cleaning Kit for Olympus OM-D EM-5, Pen E-P2, E-P3, E-PL2, E-PL3, E-PM1 & Panasonic Micro 4/3 Digital Cameras

Purchased after using Samyang 500mm f6.2. Samyang 500 is touchy, but ok even with x2 (1000mm). Polaroid 900 produced distorted image even at 100ft. (Birds in sunlight with heavy tripod) passed through focal plane several times slowly and image was always distorted. Distortion was the same at 20miles Shame on polaroid for putting your name in ths. I would not even give this to a student in high school photography, that would be too mean. I have seen clearer images through glass construction blocks.