The Canon EF 50 mm f/ 1.4 USM is probably the most popular fast standard lens for EOS cameras. This lens inherited the optical scheme of the FD 50 mm f/1.4, which had always been valued for sharpness and color balance.
It was based on the Planar optical scheme with the double Gauss lens.
The lens uses a micro-type ultrasonic autofocusing motor which provides fast and silent focusing. It is possible any time to select between AF and MF modes with a single rotation of the focus ring.
The lens is already rather sharp at f/1.4. From f/ 2.8 onward it is very sharp. It shows fall of resolution on the edges visible on 35 mm sensors and film.
The two low dispersion elements considerably minimize flare when shooting wide open and eliminate astigmatism.
It has a 8-blade aperture. Bokeh is soft and flexible.
The Canon EF 50 mm F 1.4 USM is useful as a kit everyday lens, as well as for close-up shooting of festivals, weddings, anniversaries and sporting events.
It is fit for shooting in poor light conditions without a flash. All the merits of the lens are completed with its small size and weight, it is compact and easy to handle with.
As for the Canon EF 50 mm f/ 1.4 USM downsides, one can mention an insufficient mechanical durability. Dropping the lens or applying even a slight mechanical action to it may cause serious problems with autofocus and the focus ring movement
Compatible hood: ES-71II
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Posted by: Sergei Borodin Date of publication: 28.07.2010