Optical Image Stabilizer provides up to 4 shutter speed stops of correction. Ring USM, high-speed CPU, and optimized AF algorithms for fast auto focusing with a minimal focusing distance of 0.20m. Full-time manual focus for manual adjustment while in AF mode with silent and smooth operation making it suitable for video recording. Aspherical lens elements improve peripheral image quality. Circular diaphragm (7 blades) delivers beautiful, soft backgrounds.
From the Manufacturer
EF 24mm f/2.8 USM
The Canon EF 24mm f/2.8 IS USM lens is the ideal entry focal length into the world of ultra wide-angle photography. A compact, fixed focal length 24mm lens equipped with Canon's Optical Image Stabilizer technology that offers up to 4 stops of shake correction along with a ring-type USM and advanced CPU with optimized AF algorithms for fast auto focusing. Full time manual focus feature is available for manual focusing even while in AF mode while a minimum focusing distance of 0.66 ft (0.20m) offers dramatic wide-angle images. Aspherical lens elements help improve image quality on the periphery while a 7-blade circular aperture diaphragm delivers beautiful, soft backgrounds. Lens coatings are also used to help minimize ghosting and flares. Offering spectacular image quality, silent and smooth operation in a compact body, it's the ideal lens for capturing both stills and video.
Please be advised that when EF 24mm f/2.8 IS USM is used with EOS-1D Mark IV, the firmware of the camera should be updated to version 1.1.1 or later. The firmware is to be released in March 2012. The update helps to optimize the exposure accuracy.
- Focal Length & Maximum Aperture: 24mm, 1:2.8
- Lens Construction: 11 elements in 9 groups
- Diagonal Angle of View: 84Â°
- Focus Adjustment: Inner focusing system with USM
- Closest Focusing Distance: 0.20m / 0.66 ft.
- Filter Size: 58mm
- Max. Diameter x Length, Weight: 2.69 x 2.19 in., 9.9 oz. / 68.4 x 55.7mm, 280g