What is 17 40 canon lens?

The Canon EF 17-40mm f/4L USM lens is a wide-angle zoom lens renowned for its image quality and durable build. It is a member of Canon's prestigious L-series, indicated by the red ring around the lens barrel, which signifies high-end optics and construction.

• Focal Length: It offers a versatile range of [https://www.wikiwhat.page/kavramlar/focal%20length](focal length) from 17mm (ultra-wide) to 40mm (standard wide), suitable for landscapes, architecture, and environmental portraits.

• Aperture: The constant f/4 https://www.wikiwhat.page/kavramlar/aperture provides consistent exposure across the zoom range. While not as fast as some other wide-angle lenses, it still allows for decent low-light performance and shallow depth of field in certain situations.

• Image Quality: The lens delivers sharp images with good contrast and color rendition. It incorporates Super UD (Ultra-low Dispersion) glass elements and aspherical elements to minimize chromatic aberration and distortion.

• Autofocus: It uses Canon's USM (Ultrasonic Motor) for fast, quiet, and accurate https://www.wikiwhat.page/kavramlar/autofocus.

• Build Quality: The lens is weather-sealed, making it resistant to dust and moisture, ideal for outdoor shooting. Its robust construction ensures durability.

• Compatibility: It is compatible with Canon's full-frame EF mount cameras and also works on APS-C cameras, where it provides a narrower field of view (equivalent to approximately 27-64mm).

• Common Uses: Landscape photography, architectural photography, interior photography, environmental portraits, and general-purpose wide-angle photography.

• Price: Generally available at a mid-range price point compared to other Canon L-series lenses, making it a popular choice for both amateur and professional photographers.