A ring-type Ultrasonic Motor AF system provides fast and accurate autofocus while built-in optical image stabilization can help compensate for about 4 stops of shutter speed, minimizing the effects of camera shake. This lens also offers a zoom lock switch to prevent lens creep when not actively in use as well as an internal focus system. Full-time manual focus override is available for making adjustments regardless of the AF mode. Additionally, it has a rounded 10-blade aperture diaphragm for smooth out of focus elements.
As with all L-series lenses, this optic has a dust- and water-resistant construction thanks to numerous seals that prevent intrusion when working in inclement weather. It also uses a fluorine coating on the exposed front and rear elements to help prevent smudges and make cleaning easier.
|Focal Length||24 - 105mm|
|Aperture|| Maximum: f/4 |
|Camera Mount Type||Canon EF|
|Format Compatibility||35mm Film / Full-Frame Digital Sensor|
|Angle of View||84° - 23° 20'|
|Minimum Focus Distance||1.48' (45 cm)|
|Maximum Reproduction Ratio||1:4.3|
|Diaphragm Blades||10, Rounded|
|Filter Thread||Front: 77 mm|
|Dimensions (DxL)||Approx. 3.29 x 4.65" (83.5 x 118 mm)|
|Weight||28.04 oz (795 g)|