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【Product】
Detailed Description
FeaturesMinimum focusing distance of 0.15m. This is the world's first※ fish-eye lens that achieves full-size fish-eye and diagonal fish-eye effects with three different imaging sensors (full-frame for full-size fish-eye and diagonal fish-eye; APS-C/H-size for diagonal fish-eye). By adopting UD lenses and high-precision GMo aspherical lenses, it delivers high resolution and high contrast image quality appropriate for L-series lenses. It also features high dust and water resistance and durability.
※As interchangeable lenses for single-lens reflex cameras. As of August 23, 2010, according to Canon.
■ Aspherical LensCorrects spherical aberration of large-diameter lenses, distortion of wide-angle lenses, and enables compact zoom lenses. The aspherical lens was developed to solve these three issues.
■ UD LensDeveloped under the theme of achieving ideal chromatic aberration correction with more lenses, UD (Ultra Low Dispersion) lenses feature optical materials with low refraction and low dispersion, such as fluorite, which have abnormal dispersion characteristics and perform almost as well as a single fluorite element with just two elements.
■ Ring USMUSM (Ultrasonic Motor) provides high torque and high responsiveness, enabling quick autofocus. It also operates with minimal noise, making it ideal for lens drive.
■ Inner FocusA technology that makes part of the lens assembly focus, reducing the overall weight of moving lens elements. It enables fast and precise AF control, excellent holding balance, and a compact design.
■ Full-time Manual FocusAllows the photographer to manually adjust focus immediately after autofocus by simply rotating the focus ring after single-shot AF.
■ Dust and Water ResistanceDesigned with structures that withstand harsh professional shooting conditions, preventing dust and water droplets from entering.
■ SWC (Subwavelength Structure Coating)A new anti-reflective coating that suppresses light reflection by arranging countless nanoscale wedge-shaped structures smaller than visible light wavelengths on the lens surface. It significantly reduces flare and ghosting even on wide-angle lenses with large curvature.
■ Fluorine CoatingA new coating technology developed to easily remove dirt from the lens surface. Fluorine coating has high oil and water repellency, can be wiped clean with a dry cloth without solvents, and is less prone to static electricity and dust attraction after wiping. Its smooth surface is also resistant to scratches and repels water droplets.
Product Introduction
The aspherical lens was developed to solve three themes: correction of spherical aberration of large-diameter lenses, correction of distortion in wide-angle lenses, and miniaturization of zoom lenses. Under the theme of achieving ideal chromatic aberration correction, UD (Ultra Low Dispersion) lenses were developed. The USM (Ultrasonic Motor) provides high torque and high responsiveness for quick autofocus, with minimal operational noise, making it an ideal motor for lens drive.
Manufacturer Model Number: EF8-15LFEAngle of View (Horizontal, Vertical, Diagonal): 180°0'–142°0', 180°0'–91°46', 180°0'–175°30'Lens Configuration: 11 groups 14 elementsMinimum Focusing Distance: 0.15mFilter Diameter: Rear clamp type