The EF 50mm f/1.2L USM is a peerless new standard lens featuring an ultra-large aperture for a narrow depth of field and soft background blur so loved by photographers everywhere. The EF 50mm f/1.2L USM is suitable for any shooting situation; its lens coating and construction are optimized to minimize the ghosting and flare that frequently occurs when lenses are used with digital cameras. This high-performance, weather-resistant lens delivers all the superb image resolution and contrast you expect in a Canon L Series Lens.
PhotoZone Review:
http://www.photozone.de/Reviews/Canon%20EOS%20Lens%20Tests/45-canon-eos-aps-c/158-canon-ef-50mm-f12-usm-l-test-report--review
The-digital=picture.com Review:
http://the-digital-picture.com/Reviews/Canon-EF-50mm-f-1.2-L-USM-Lens-Review.aspx
PBase Samples:
http://www.pbase.com/cameras/canon/ef_50__12l_usm