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The Sigma 10mm f/2.8 EX DC fisheye is a photographic lens manufactured by Sigma Corporation. It is a diagonal fisheye lens. Unlike most fisheye lenses, this lens is designed for digital SLR cameras that do not have a full 36x24mm sensor.[1] This results in a much greater fisheye effect than is possible when a full-frame fisheye lens is used with a smaller sensor. The projection type of this lens is equidistant[2]
 | |
| Maker | Sigma Corporation |
|---|---|
| Technical data | |
| Type | diagonal fisheye lens |
| Focal length | 10mm |
| Crop factor | Varies by sensor size |
| Aperture (max/min) | f/2.8 - f/22 |
| Close focus distance | 13.5cm |
| Max. magnification | 1:3.3 |
| Diaphragm blades | 7 |
| Construction | 12 elements in 7 groups |
| Features | |
| Short back focus |  No |
| Ultrasonic motor |  Yes |
| Lens-based stabilization |  No |
| Macro capable | No |
| Unique features | fisheye |
| Physical | |
| Max. length | 83.1mm |
| Diameter | 75.8mm |
| Weight | 475g (16.8oz) |
| Filter diameter | rear (Gelatin filter) |
| Accessories | |
| Lens hood | built-in petal |
| Angle of view | |
| Diagonal | 180° (Sony Alpha, Nikon D), 157° (Sigma SD), 167° (Canon) |
| History | |
| Introduction | Nov. 2007 |
| Retail info | |
| MSRP | $1000 USD |
This lens is available in Canon, Nikon, and Sigma, Pentax, and Sony mounts.
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