|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.|
|III||Third version of the lens.|
|USM||The lens is equipped with ultrasonic motor to provide very fast and virtually silent autofocus. Learn more|
|Position in the lineup|
|Canon EF 16-35mm F/2.8L III USM||Aug 2016||⊗|
|Canon EF 16-35mm F/2.8L II USM||Apr 2007||⊗|
|Canon EF 16-35mm F/2.8L USM||Dec 2001||⊗|
|Canon EF 17-35mm F/2.8L USM||Apr 1996||⊗|
|Canon EF 20-35mm F/2.8L||Oct 1989||⊗|
|Maximum format:||35mm full frame|
|Diagonal angle of view:||107°-63.4° (35mm full frame)|
|93.6°-51.9° (Canon APS-H)|
|80.7°-42.5° (Canon APS-C)|
|Lens construction:||16 elements in 11 groups, including:|
|Number of blades:||9|
|Closest focusing distance:||28 cm|
|Type of autofocus motor:||Ring-type Ultrasonic Motor|
|Full-Time Manual Focus:||Yes|
|Maximum diameter x Length:||Ø88.5 x 127.5 mm|
|Weather sealing:||Dust-proof and water-resistant barrel|
|Fluorine coating:||Front and rear elements|
|Filter size:||82 mm|
Design and Features
An improved version of Canon EF 16-35mm F/2.8L II USM with better edge and corner sharpness.
The lens is a part of Canon’s series of Luxury lenses notable for their excellent build quality and robust design. 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.|
The lens uses front filters with standard size of 82 mm which are easy to find. However, filters of such size are more expensive and mainly used with professional lenses.
The filter thread does not rotate during focusing which allows convenient use of different types of filters (including but not limited to polarizing and gradient).
A fluorine coating has been applied to the outer surfaces of the front and rear lens elements to repel particles of dust, water or oil drops for easier cleaning of the lens surfaces.
|Camera:||Canon EOS 5D mark III|
|Sensor size:||36×24 mm|
|Distortion at 16 mm:||-2.99 %|
|Distortion at 35 mm:||+1.47 %|
|Vignetting at 16 mm F/2.8:||-4.07 EV|
|Vignetting at 35 mm F/2.8:||-1.17 EV|
Alternatives (AF, 14-40 mm)
|Canon EF 16-35mm F/2.8L II USM||2007||⊗|
|Canon EF 16-35mm F/2.8L USM||2001||⊗|
|Canon EF 17-35mm F/2.8L USM||1996||⊗|
|Sigma 17-35mm F/2.8-4 EX DG Aspherical HSM||2003||⊗|
|Tamron SP AF 17-35mm F/2.8-4 Di LD Aspherical (IF) A05||2003||⊗|