The Canon EF 50 mm f/ 1.0 L USM , released in 1989, is a professional L-series autofocus prime lens, equipped with a USM autofocus drive.
The body of the Canon EF 50 mm f/ 1.0 L USM is metal with plastic blocks.
Maximum aperture of the lens is f/1.0. This is the only Canon EF lens this fast.
It delivers soft and flexible image with beautiful bokeh and well proven, gradual tonal transitions.
The Canon EF 50mm f/1.0 L USM is rather solid and heavy in comparison with other 50 mm cameras.
It should be noted that with all its characteristics and price, from f/2 onward the Canon EF 50 mm f/ 1.0 L USM is inferior to resolution of modern and more inexpensive Canon 50 mm cameras. (see the graphs).
According to its optical characteristics, the lens is very recommended to use as an ultra-fast portrait lens. It is also fit for genre and other types of photography, especially in low light conditions. The lens will show itself only on a film or a non-cropped 35 mm sensor.
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Posted by: Sergei Borodin Date of publication: 28.07.2010