Can anyone tell me what kind of mount this Rokinon lens has (Konica AR or Minolta)?

Question

I recently bought this lens and I am looking to adapt it to a Nikon D3300 and i was wondering if anyone could tell me what the mount of the lens is. Thank you :)

Answer 1

It's a Contax/Yashica (C/Y) mount. From the WY Cameras identification guide,

To identify them visually, it’s a similar situation to Minolta MD lenses – look for the position of the notch cut out of one of the bayonets. On C/Y lenses, it’s on the left of the bayonet.

^{Image of C/Y lens mount. From wycameras.com}

Specifically, because of the D-shaped fixed pin next to the notched tab on the right, your lens appears to be made for Yashica bodies. I believe the position of this pin communicates maximum aperture of the lens to the camera body. Source: discussion at photrio.com

In order to adapt it to a Nikon F-mount body, because the C/Y mount registration distance (also known as flange focus distance) is shorter than the F-mount registration distance, you will need an adapter with a corrective lens in it. These types of adapters tend to reduce the image quality.

See also, Can I use lens brand X on interchangeable lens camera brand Y?