Friday, February 20, 2015

What is Lens Camera Canon EF 135mm f/2 L USM? sophisticated




Information about product lens for SLR Canon EF 135mm f / 2L USM

Inconspicuous, black, relatively small and light. So the outer and tactile impressions which appear initially less impressive. Screwing the Canon 135 mm/2.0 on the camera, then its inner values turn out to be however. High light intensity (bright viewfinder) and pleasant grip are now positive.

Already at maximum aperture a strong performance by over 2,200 line pairs shows can be found in the Centre. At f/5.6, the maximum resolution is reached and remains even at f/11 still at a high level. The initial vignetting by just of a hood almost no longer exists at f: 2.8 and also the chromatic aberrations with 4 pixels at maximum aperture at a good level. An auto focus performance by an average of 94% is located at a very reasonable level (92% phase-AF, 96% contrast AF).

On full frame, it can serve the conditional format "focal lengths extension" for purposes of the portrait should be usually hardly ideal for crop sensors such as classic head portrait lens or light tele.

The relatively low for the focal length range minimum focusing distance of 90 cm, 8 aperture blades, a very fast ring USM AF motor with internal focusing, focus limiter, L typical delivery with leather bag and lens hood.

Lens for SLR Canon EF 135mm f / 2L USM - detailed specifications

Type                                                     fixed
focal length                                           135 mm
Aperture                                               f / 2
Minimum aperture                                 f / 32
Construction                                         10 elements in 8 groups
Angle of                                               18 °
Diaphragm                                           8 blades
The filter diameter                                72 mm
Mini distance developed                      0.90 m
Telephoto                                           Yes
Lens aperture fixed                             Yes
Long throw projection lens                 Yes
Size                                                    82.5 x 112 mm
Weight                                               750 g


Supplied accessories lens hood and-78II, flexible lens pouch LP1219

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Canon EF 135mm f/2L USM Lens for Canon SLR Cameras