Canon EF 11-24mm f/4L USM Lens

A versatile wide-angle zoom featuring a sophisticated optical design and continuous f/4 maximum aperture, the Canon EF 11-24mm f/4L USM Lens is an associate of the esteemed L-series of lens created for full-frame EOS DSLRs. One Super UD element and one UD component provide a significant decrease in chromatic aberrations while four aspherical elements help reduce distortions throughout the focus range and offer consistent edge-to-edge sharpness and lighting.

Both SWC and ASC coatings have been applied to the elements in order to reduce lens flare and ghosting for increased comparison and color accuracy. Suited for scenery and architectural picture taking ideally, this lens addresses ultra-wide to wide-angle perspectives and backs up its flexible move range with advanced optical components and user-friendly handling.

In regards to focusing performance, a ring-type Ultrasonic Electric motor offers fast, clean, and near-silent autofocus, which is further benefitted by full-time manual concentrate operation and an internal concentrating design. The zoom lens is both drinking water and dust-resistant, and fluorine coatings have also been put on the front and rear elements to safeguard against fingerprints and smudges from influencing image quality.

Canon EF 11-24mm f/4L USM Lens

Features

• Wide-angle zoom 11-24mm f/4 lens works with full-frame EOS DSLRs, as well as APS-C-sized detectors where it shall give a 17.6-38.4mm comparative focal length range.
• Continuous f/4 maximum aperture offers constant performance and light transmission throughout the zoom range.
• One Super UD (Ultra Low Dispersion) and one UD element help to significantly reduce chromatic aberrations for improved clearness and color precision.
• Four aspherical elements help minimize distortions throughout the focus range to be able to keep up edge-to-edge sharpness and illumination.
• Both a Subwavelength Layer (SWC) and an Air Sphere Finish (ASC) have been put on lens elements to lessen backlit flaring and ghosting for taken care of light transmission and high contrast in strong lighting conditions.
• A ring-type Ultrasonic Motor (USM), along with an interior centering system, high-speed CPU, and optimized AF algorithms, are used to provide fast, precise, and near-silent autofocus performance.
• Full-time manual focus operation is designed for fine-tuning of your concentrate position when employed in the AF mode.
• A weather-resistant design protects the zoom lens from dirt and moisture to allow its use in inclement conditions. Additionally, fluorine coatings are also applied to leading and rear lens elements for even more safety against fingerprints and smudging.
• Nine curved diaphragm blades donate to a pleasing away of focus quality that benefits the utilization of shallow depth of field and selective concentrate techniques.
• Lens' design allows back insert-type gelatin filter systems, that are inserted and cut-to-size behind the trunk lens element.