The Rokinon 8mm f/2.8 UMC Series II Fish-Eye Black Lens for Sony E-mount is a high quality ultra wide angle lens designed exclusively for compact system cameras.
It gives an immense field of view - 180 degrees, with a 12mm (35mm equivalent) field of view. The 8mm is a diagonal fisheye lens for APS-C format, meaning that the image it produces fills the frame on APS-C cameras.
As with all current Rokinon lenses it is manual focus only. It is also compact, and lightweight, giving a perfect combination with compact system cameras.
The optical construction of the lens is 10 lens elements, 8 groups, 1 ASP and 2 ED elements for optimum optical performance. The aperture consists of six diaphragm blades with apertures available from f/2.8 to f/22. It has an Internal focusing (IF) system which means the lens does not change in size when focusing.
Additionally, the Rokinon 8mm fisheye features the latest generation multilayer anti-reflection ultra multi-coating (UMC) to minimize flare and ghosting. The integrated lens hood also helps to reduce flare from behind the lens.
Due to the very large depth of field produced by such a small focal length lens, focus can be easily achieved by simply setting the approximate distance on the lens scale. Setting the lens to around 1m at f8 will produce images that are sharp from very close objects to infinity. As with all manual focus lenses for critical or in very close focus situations you can use Live-View to fine-tune the focus manually.
The Rokinon 8mm f/2.8 fish-eye lens is also capable of producing panoramas and 360 virtual tours, including full 360 degree images with use of various third party software.
The Rokinon 8mm Fisheye Lens gives you a dramatic, exaggerated, wide angle perspective when used with an APS-C camera, or a powerful circular image floating in the frame when used with a full frame digital camera or 35mm film camera.
Note: Rounded image when used with full frame sensors