• EF Mount Lens
• Aperture Range: f/4.5-40
• Diffractive Optical Elements
• Two-Mode Image Stabilization System
• Ultrasonic Autofocus Motor
• Manual Focus Override
• Zoom Ring Lock Lever
• Compact Form Factor
• Truly Circular Diaphragm
• Minimum Focus Distance: 4.6'
The EF 70-300mm f/4.5-5.6 DO IS USM Lens from Canon is a relatively compact telephoto zoom offering superior maximum-aperture performance across its entire focal length range. It incorporates Canon's DO (Diffractive Optics) and IS (Image Stabilizing) technologies.
The use of Diffraction Optics allows a lens to be shorter, lighter, and of higher image quality than comparable normal optical systems of the same focal length and aperture-while this lens is heavier than the consumer-grade EF 70-300mm f/4-5.6 IS USM lens, it is 28% shorter and uses Canon's very best ring-USM (ultrasonic) motor instead of the lighter, slower, and less costly 'micro-USM' motor.
The DO lens performs admirably at its maximum aperture, with images that are very comparable to the "L" series telephotos. It has a circular aperture diaphragm to help create natural out-of-focus highlights, and its built-in two-mode image stabilizer allows you to handhold the lens at shutter speeds 3 steps slower than would otherwise be possible. Mode 1 corrects vibrations in all directions and is best for still subjects whereas Mode 2 is best when following moving subjects either horizontally or vertically.
The lens' AF is super-fast and silent with a ring-type USM that focuses down to 4.6', and it enables manual focus override for precise manual focus even in AF mode. It also features a zoom lock button that keeps the lens safe and secure when not in use or when being used at the shortest 70mm focal length setting. The EF 70-300mm f/4.5-5.6 DO IS USM is an ideal lens for sports, portraiture, animals, and other applications when you're shooting in relatively bright light.
|Focal Length||70 - 300mm|
|Comparable APS-C 1.6x = 112 - 480 mm|
|Aperture||Maximum: f/4.5 - 5.6|
|Minimum: f/32 - 40|
|Camera Mount Type||Canon EF|
|Format Compatibility||35mm Film / Full-Frame Digital Sensor|
|Angle of View||34° - 8° 15'|
|Minimum Focus Distance||4.60'; (1.40 m)|
|Maximum Reproduction Ratio||(1:5)|
|Filter Thread||Front: 58 mm|
|Dimensions (DxL)||Approx. 3.24 x 3.93" (82.4 x 99.9 mm)|
|Weight||1.58 lbs (720 g)|
|Package Weight||2.3 lb|
|Box Dimensions (LxWxH)||7.4 x 5.5 x 5.4"|