Canon EF 8–15mm lens
|Focus drive||Ultrasonic motor|
|Close focus distance||0.16 m (6.2 in)|
|Max. magnification||0.34 (at 15 mm)|
|Construction||14 elements in 11 groups|
|Short back focus||No|
|Unique features||Fisheye, L-Series|
|Max. length||83.0 mm (3.7 in)|
|Diameter||78.5 mm (3.1 in)|
|Angle of view|
The Canon EF 8–15mm f/4L Fisheye USM is a fisheye zoom lens for Canon digital single-lens reflex cameras (DSLRs) with an EF lens mount. It delivers 180° diagonal angle of view images for all EOS SLR cameras with imaging formats ranging from full-frame to APS-C, and provides 180° circular fisheye images for full-frame EOS models. It features UD glass for suppression of chromatic aberration and a subwavelength coating for reduced ghosting. It has full-time manual focus for instant switching from AF to Manual operation.
This lens broke new market ground in several respects:
- It is the first Canon EF lens to offer 180° circular fisheye images for full frame image sensors.
- It is the first zoom fisheye lens for any DSLR to offer a full 180° angle of view in both circular and rectangular image formats.
- It is the first lens by any manufacturer to offer a 180° angle of view for APS-H (1.3x crop factor) bodies.
- Also, it is the first zoom fisheye lens to offer a 180° angle of view on both full-frame and cropped bodies.
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