Samyang 16mm f/2.0 ED AS UMC CS Lens for Samsung NX Mount

The throw of the Samyang 16mm f/2.0 is roughly 120~135 degrees based on my estimation after playing with it in the store. The Cine version is likely only different in that it has follow-focus gears. If you are interested in getting gears for this lens separately and using the lens for both photo and video, that would make this lens a very versatile choice. The diameter of the focus ring is 73.9mm.

You can use any 77mm sized filter on this lens.

We do not carry the Astronomik line of filters so we cannot speak to the efficacy of such a combination. Please contact Astronomik.We can offer the opinion that this lens will behave the same as a Canon lens as far as mounting is concerned.

The Samyang 16mm f2.0 is a fixed focal length lens. It will not zoom.

Upon further review of the question You may have problems with coverage on a FF sensor. You may have to look into the coverage issue some more.

In my experience with the Nikon version of this lens, focus assist will work with Nikon DSLRs, but the results may not be accurate depending on the particular model of camera. When I use the lens with my Nikon D300 the lens will focus in back of the subject even when the focus assist green dot in the viewfinder indicates that you are in focus. This issue is serious enough to result in out of focus photos when the lens is used at maximum aperture or close to maximum aperture, particularly in close-up photos. My D7000 body also back focuses when you use focus assist with this lens, although not as noticeably as with the D300. The only one of my camera bodies on which focus assist works with reasonable accuracy with this lens is my D7100. I don't know why this variation occurs, or how well focus assist will work with this lens on other Nikon camera bodies.If I need really accurate focus with this lens when using the D300 or D7000 I focus with the camera in Live View with the LCD view zoomed to 100%. The Nikon version of this lens is chipped to provide auto exposures, and it has five contacts to communicate exposure info with the camera body. So most of the auto exposure modes on Nikon DSLRs will work normally, with the possible exception of 3D Matrix Metering (since the lens is manual focus, I don't believe that it sends any focus distance information to the camera body). Regular Matrix Metering does work, -this is the exposure mode I normally use and I have not had any exposure issues with this lens when used in that mode.The lens has a manual aperture ring with a Nikon AI aperture coupling tab. So, when used on Nikon cameras with an AI tab, this lens is technically AI-P . You do have to set the lens to its minimum aperture for auto exposure to work, and the aperture ring does not have a minimum aperture lock. But the ring does click very securely to minimum aperture so it's unlikely that you might accidentally knock it off the minimum aperture of f/22.

No, the Samyang 16mm f/2.0 ED AS UMC CS Lens for Micro Four Thirds Mount does not require lens support for use on cameras using the Micro Four Thirds lens mount.

The manual focus Samyang 16mm f/2.0 ED AS UMC CS Lens for Canon is compatible with the Canon T2i.