Different versions
In the Samyang range, the Nikon version of each lens is the only one to feature electronic contacts to relay exposure information. On the Nikon version, the shutter speed and aperture can be controlled via exposure modes, and it is undeniably easier to use than the other versions. In use, the aperture ring must be set to the f/22 marker.
For all other versions of the Samyang lens, the aperture is adjusted using the aperture ring on the lens itself, so only aperture priority or manual exposure is available. As a result, the brightness of the viewfinder is affected depending on the aperture selected. For example, if you choose a more closed aperture, the viewfinder display is darker. Furthermore, the exposure information is not displayed in-camera during capture or in the metadata of image files. These handling issues do make all the Samyang lenses, apart from the Nikon versions, trickier and less convenient to use. However, many of the Sony single-lens translucent cameras can indicate the focus point through a ‘peaking’ function, which helps to ensure the correct area is in focus.
