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The EF8–15mm 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. Announced by Canon in 2010, 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.
 | |
| Maker | Canon |
|---|---|
| Technical data | |
| Type | Zoom |
| Focus drive | Ultrasonic motor |
| Focal length | 8–15mm |
| Crop factor | 1 |
| Aperture (max/min) | f/4 |
| Close focus distance | 0.16 m (6.2 in) |
| Max. magnification | 0.34 (at 15 mm) |
| Construction | 14 elements in 11 groups |
| Features | |
| Short back focus |  No |
| Lens-based stabilization |  No |
| Macro capable | No |
| Unique features | Fisheye, L-Series |
| Application | Special Effect |
| Physical | |
| Max. length | 83.0 mm (3.7 in) |
| Diameter | 78.5 mm (3.1 in) |
| Weight | 540 g |
| Angle of view | |
| Diagonal | 180° |
| History | |
| Introduction | 2010 |
| Retail info | |
| MSRP | $1,399 USD |
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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.[1] Note Canon had a circular fisheye lens for the FD mount.[2]
- 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.[3]
- It is the first lens by any manufacturer to offer a 180° angle of view for APS-H (1.3x crop factor) bodies.[1]
- Also, it is the first zoom fisheye lens to offer a 180° angle of view on both full-frame and cropped bodies.[1]
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