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This Canon EF Mount Samyang 8mm T3.8 UMC Fish-Eye CS II Lens is a fish-eye cine lens designed for video capture on cameras with APS-C sized sensors. It features an 8mm focal length and a 180° ultra wide angle of view. This angle of view changes, however, to 167° on Canon cameras because Canon APS-C sized sensors are slightly smaller and have a crop factor of 1.6.
Fish-eye lenses aren't for common, everyday shots, but can be excellent for capturing sports stadiums, large halls, highly-packed city sights, and similar scenery in a warped, unconventional fashion. They're also useful in making small rooms look bigger and straight lines or bars appear more oval, in both scenarios as a result of warping the image.
The aperture ranges from T3.8 to T22. T3.8 being its fastest aperture, this lens is best used in environments with sufficient light or with a light source incorporated. The aperture is manually adjustable without click stops with a continuous, smooth aperture ring. Both the aperture ring and focus ring feature a 0.8 gear pitch in case you want to use a follow focus with either. The focus ring is also well-damped and very smooth. The lens doesn't offer auto-focus, but in fish-eye lenses objects appear mostly in focus anyway. The minimum focusing distance is 11.8" (30 cm).
The lens has 10 lens elements arranged in 7 groups. It's coated with Samyang's multi-layered, anti-reflection Ultra Multi Coating (UMC), which suppresses flaring and ghosting. The lens body is made of aluminum and is very robust. A removable, petal type lens hood, and front and rear lens caps are included with the lens.
Fish-eye cine lens for cameras with APS-C sized sensors
8mm focal length
180° ultra wide angle of view
6 aperture blades
T3.8 to T22 aperture range
Aperture is adjustable by a continuous aperture ring
0.8 gear pitch on aperture and focus rings
Well-damped, very smooth focus ring
11.8" (30 cm) minimum focusing distance
10 lens elements arranged in 7 groups
Multi-layered, anti-reflection Ultra Multi Coating (UMC)
Robust, aluminum body
Includes removable, petal type lens hood
|Lens Mount:||Canon EF|
|Aperture:||T3.8 to T22|
|Angle of View:||180° diagonal (becomes 167° because Canon's APS-C sized sensor has a 1:1.6x crop factor)|
|Minimum Focus Distance:||11.8" (30 cm)|
|Optical Construction:||10 elements in 7 groups (1 aspherical element)|
|Number of Aperture Blades:||6|
|Front Diameter:||75 mm|
|Gear Pitch:||0.8 (on both the focus and aperture rings)|
|Length (Lens Mount to Front):||2.95" (75.1 mm)|
|Weight:||1 lb (455 g)|
|Package Weight:||1.8 lb|
|Box Dimensions (LxWxH):||8.7 x 6.5 x 4.9"|