Review on Olympus M Zuiko Digital F4 0 5 6 Cameras by Wendy Harris

If you've ever seen an ultra wide-angle lens on a full-frame or APS-C camera, you know they're pretty big and heavy. This lens is a marvel of compactness. The folding design is ingenious and, unlike the Olympus 14-42, doesn't look sleek. The lens focuses very quickly (on the Olympus OM-D) and produces excellent images. Any distortion in this lens is corrected by software so straight lines look straight. It's a little pricey but worth it.