|EF||Autofocus lens designed both for Canon full frame and APS-C SLR cameras.|
|L||Professional lens with high quality optics and robust build. Meets the highest standards and provides excellent performance and flawless image quality unachievable with traditional optical technologies.|
|USM||The lens is equipped with ultrasonic motor to provide very fast and virtually silent autofocus. Learn more|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||126.1°-84° (35mm full frame)
114.3°-70.7° (Canon APS-H)
102.1°-59.1° (Canon APS-C)
|Lens construction:||16 elements in 11 groups, including 4 ASPH, 1 Super UD, 1 UD|
|Closest focusing distance:||28 cm|
|Number of diaphragm blades:||9|
|Type of autofocus motor:||Ultrasonic (Canon EF)
|Full-Time Manual Focus:||Yes|
|Maximum diameter x Length:||Ø108 x 132 mm|
|Materials:||Metallic barrel, metallic mount|
|Weather sealing:||Dust-proof and water-resistant housing|
|Fluorine coating:||Front and rear elements|
|Filter size:||No thread|
Rectilinear full-frame wide-angle zoom lens with widest angle of view ever made for full-frame digital SLR cameras.
The lens barrel is heavy, dust-proof and water-resistant, made of metal. The lens mount is metallic.
The lens has rather narrow focal range. Formally it is the disadvantage, however in practice it contributes to a good compensation of optical aberrations and equally high image quality at the entire focal range.
The lens features AF/MF focus mode switch.
|AF||Autofocus mode with Full-Time Manual Focus.|
|MF||Manual focus mode.|
1 Super UD
Aspherical elements (ASPH, XA) minimize spherical aberration, astigmatism, coma and ensure excellent sharpness and contrast even at maximum aperture.
Low dispersion elements (AD, ED, LD, HLD, SD, UD etc) and fluorite elements minimize chromatic aberrations and ensure excellent sharpness and contrast even at maximum aperture.
Due to the prominent convex profile of the front element the lens does not have a filter thread. However, the manufacturer provided a slip-in filter holder for cut gelatin filters at the rear of the lens.
Actually Canon EF 11-24mm F/4L USM is a specialized tool affordable mostly for pros. If you don't need such an ultra-wide angle of view then it's rationally to stick to Canon 16-35/4 or 17-40/4 wide-angle zooms.
|Camera||Canon EOS 5Ds R||Canon EOS 5D mark III|
|Sensor size||36×24 mm||36×24 mm|
|Distortion at 11 mm||-4.46 %||-7.34 %|
|Distortion at 24 mm||-0.04 %||+0.29 %|
|Vignetting at 11 mm F/4||-3.3 EV||-2.81 EV|
|Vignetting at 24 mm F/4||-1.31 EV||-1.12 EV|
|User Manual. English, Adobe PDF, 1 MB|
|Prime lenses for Canon EOS DSLR cameras|