Canon EF 50mm f/1.0L USM Lens, EF 50mm f/1.4 USM Lens, EF 50mm f/1.8 II Lens
Images by William Castleman
27 October 2008
Conclusion: EF 50mm f/1.0L USM This heavy, complex and well-constructed lens gave disappointing performance. I had hopes that it would provide excellent optical performance at f/1.4 for some of my applications. The EF 50mm f/1.4 lens at f/1.4 produced images almost indistinguishable from those produced by the 1.0L lens at the same aperture. At f/1.0, images were soft to the point of being almost useless for any uses I would have for images.