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There's no need to buy two specialist lenses when the EF 8-15mm f/4L Fisheye USM offers, either full frame or circular fisheye images when used with cameras with a 24x36mm (full frame) sensor. For photographers shooting with DSLR's with a smaller sensor, full frame fisheye images are possible. With a 180 diagonal field of view, capturing the whole scene in a single image has never been easier.
The L-series is Canon's flagship professional lens range, representing the best in precision-designed EF optics. L-series lenses combine superior performance with superlative handling, and are highly resistant to dust and moisture.
A ring USM (Ultrasonic motor) uses ultrasonic frequency vibrations to drive extremely rapid auto focus with near-silent operation. A high-speed CPU and optimised AF algorithms contribute further to AF speed. Full time electronic manual focus override is available without having to switch out of AF mode.
Designed for use in digital photography, Canon's patented Subwavelength structure coating helps minimise the ghosting and flare caused by internal reflections. By eliminating the cause, the coating reduces reflections and helps to deliver crisp, clear images.
The foremost and rearmost lens surfaces are treated with a Fluorine Coating which enables the easier cleaning of the lens surface compared to existing coatings.
| Principal specifications | ||
|---|---|---|
| Lens type | Zoom lens | |
| Max Format size | 35mm FF | |
| Focal length | 8–15 mm | |
| Image stabilization | No | |
| Lens mount | Canon EF | |
| Aperture | ||
| Maximum aperture | F4 | |
| Minimum aperture | F22 | |
| Aperture ring | No | |
| Number of diaphragm blades | 7 | |
| Optics | ||
| Elements | 14 | |
| Groups | 11 | |
| Special elements / coatings | 1 aspherical element, 1 Ultra-low Dispersion (UD) element, SubWavelength Structure Coating (SWC), Fluorine Coating | |
| Focus | ||
| Minimum focus | 0.15 m (5.91″) | |
| Maximum magnification | 0.39× | |
| Autofocus | Yes | |
| Motor type | Ring-type ultrasonic | |
| Full time manual | Yes | |
| Focus method | Rear | |
| Distance scale | Yes | |
| DoF scale | No | |
| Physical | ||
| Weight | 540 g (1.19 lb) | |
| Diameter | 79 mm (3.11″) | |
| Length | 83 mm (3.27″) | |
| Materials | Metal barrel, metal mount | |
| Sealing | Yes | |
| Colour | Black | |
| Zoom method | Rotary (internal) | |
| Filter notes | Rear drop-in gelatin filter holder | |
| Hood supplied | Yes | |
| Hood product code | EW-77 | |
| Tripod collar | No | |
| Optional accessories | Hard case LHP-C10 Soft case ES-C9/LP814 | |
