Canon EF 11-24mm f4 L USM Lens. In great condition, the glass is clean and works great. Great lens for landscape and architecture photography. Comes with both end caps.
The Canon EF 11-24mm f/4L USM lens is a marvel of optical engineering, designed to provide photographers with an ultra-wide-angle perspective that is both versatile and high-performing. This lens is part of Canon's prestigious L-series, known for its superior build quality and exceptional image performance.
Design and Build
The lens features a robust construction with a combination of metal and high-quality plastic, ensuring durability and reliability in various shooting conditions. It is weather-sealed, making it resistant to dust and moisture, which is essential for outdoor and landscape photographers. The lens measures approximately 108mm in diameter and 132mm in length, and it weighs around 1,180 grams, making it relatively heavy but manageable for handheld shooting.
Optical Performance
The Canon EF 11-24mm f/4L USM boasts a complex optical design with 16 elements in 11 groups. This includes one Super UD (Ultra-low Dispersion) element and one UD element, which work together to minimize chromatic aberrations and color fringing. Additionally, the lens incorporates four aspherical elements to reduce distortion and spherical aberrations, ensuring sharpness and clarity across the entire frame.
Coatings and Flare Resistance
Canon has applied multiple coatings to the lens elements to enhance image quality. The Super Spectra coating helps reduce ghosting and flare, while the SubWavelength Coating (SWC) and Air Sphere Coating (ASC) further improve contrast and color fidelity, even in challenging lighting conditions. The front and rear elements are treated with a fluorine coating to repel water, oil, and dust, making the lens easier to clean and maintain.
Focusing and Aperture
The lens features a ring-type Ultrasonic Motor (USM) for fast, accurate, and near-silent autofocus. Full-time manual focus override is available, allowing photographers to fine-tune focus without switching out of AF mode. The minimum focusing distance is 0.28 meters, providing a maximum magnification of 0.16x, which is useful for close-up shots with an ultra-wide perspective.
The aperture consists of nine rounded blades, creating a pleasing bokeh effect in out-of-focus areas. The constant f/4 maximum aperture ensures consistent exposure settings throughout the zoom range, which is beneficial for video recording and low-light photography.
Field of View and Applications
With a focal length range of 11-24mm, this lens offers an extraordinary field of view, making it ideal for landscape, architecture, and interior photography. At 11mm, the lens provides a 126-degree diagonal angle of view, which is the widest available for a rectilinear full-frame DSLR lens. This allows photographers to capture expansive scenes with minimal distortion, preserving straight lines and architectural details.
Handling and Accessories
The lens includes an integrated petal-shaped hood that helps to protect the front element and reduce lens flare. Due to the bulbous front element, traditional screw-on filters cannot be used; however, a rear gelatin filter holder is provided for those who need to use filters. The lens also comes with a padded lens case for safe transportation and storage.
Conclusion
The Canon EF 11-24mm f/4L USM is a premium ultra-wide-angle zoom lens that delivers exceptional image quality and performance. Its advanced optical design, robust build, and versatile focal length range make it a valuable tool for professional photographers and serious enthusiasts who require the best in wide-angle photography. Whether capturing sweeping landscapes, intricate architectural details, or immersive interior shots, this lens stands out as a top choice in its category.