|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.|
|IS||The lens is equipped with optical image stabilizer. The stabilizer allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without stabilizer you will have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.|
|USM||The lens is equipped with ultrasonic motor to provide very fast and virtually silent autofocus. Learn more|
|Maximum format:||35mm full frame|
|Diagonal angle of view:||34.3°-8.2° (35mm full frame)|
|27.3°-6.5° (Canon APS-H)|
|22°-5.2° (Canon APS-C)|
|Lens construction:||19 elements in 14 groups, including:|
|Number of blades:||8|
|Closest focusing distance:||120 cm|
|Type of autofocus motor:||Ring-type Ultrasonic Motor|
|Full-Time Manual Focus:||Yes|
|Stabilizer features:||Tripod Detection|
|Stabilizer efficiency:||up to 4 stops|
|Maximum diameter x Length:||Ø89 x 143 mm|
|Weather sealing:||Dust-proof and water-resistant barrel|
|Filter size:||67 mm|
Design and Features
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 features a zoom lock lever to keep the zoom ring fixed at the shortest focal length of 70 mm. This function is convenient for carrying a camera with the lens on a strap because it prevents the lens from extending.
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 67 mm which are easy to find. They are also inexpensive.
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).
The lens features optical image stabilizer, which, according to the manufacturer, compensates up to 4 stops of shutter speed. Theoretically it allows to capture sharp images of static subjects at shutter speeds down to 1/19 second at focal length of 300 mm*).
*) without the need to increase ISO sensitivity and/or use a tripod, at the same lighting conditions and at the same aperture
At the choice of the photographer the image stabilizer can operate in one of the following modes:
|Mode 1||Corrects vertical and horizontal camera shake. Mainly effective for shooting still subjects.|
|Mode 2||Corrects vertical camera shake during following shots in a horizontal direction. Corrects horizontal camera shake during following shots in a vertical direction.|
It is often thought that image blur caused by camera shake can be prevented by using a tripod. Actually, however, even using a tripod may result in image blur because of tripod vibration caused by mirror or shutter movement at the time of exposure. The image stabilizer automatically differentiates the frequency of the vibration from that of camera shake, and changes algorithm to correct image blur caused by slight tripod vibration.
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.
The lens incorporates a floating system that provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. Learn more
|Camera:||Canon EOS 1Ds mark III|
|Sensor size:||36×24 mm|
|Distortion at 70 mm:||-1.61 %|
|Distortion at 300 mm:||+1.87 %|
|Vignetting at 70 mm F/4.0:||-1.37 EV|
|Vignetting at 300 mm F/5.6:||-1.34 EV|
|Efficiency of Image Stabilizer:||up to 4.3 stops|
|Camera:||Canon EOS 5D mark II|
|Sensor size:||36×24 mm|
|Distortion at 70 mm:||-1.65 %|
|Distortion at 300 mm:||+1.33 %|
|Vignetting at 70 mm F/4.0:||-0.88 EV|
|Vignetting at 300 mm F/5.6:||-0.82 EV|
|User Manual. English, Adobe PDF, 406 KB|
|User Manual. Русский, Adobe PDF, 413 KB|