Canon EF 8 15mm f4L USM Fisheye Zoom Lens

The world's first fisheye zoom lens offering the choice of a full frame or circular on 35mm sensors image. This durable, rugged lens is designed for use in challenging conditions and the fluorine coatings on lens surfaces makes cleaning easier and helps reject water and fingerprints.High Quality ImagesThe combination of UD Ultra Low Dispersion and aspherical elements gives sharp results across the zoom range. Also to reduce ghosting and flare, this lens has state of the art SubWavelength and Super Spectra coatings.Fast and Convenient FocusingThe Ring USM motor delivers incredibly fast and quiet focusing, while Full Time Manual Focus offers instant manual focus just by moving the focus ring.SpecificationsLens Construction 14 Elements in 11 GroupsAngle of View Horizontal, vertical, diagonal 180° 142°, 180° 91°46', 180° 175°30'Diaphragm Blades 7 roundedMinimum Aperture f22Closest Focusing Distance 15cmMaximum Reproduction Ratio 0.39x at 15mmDust & Moisture Resistance Yes