Samyang Builds in the Lens Adapter for Sony A7R / A7 E-Mount
Samyang has been rolling out lenses for still and video use, aggressively adding support for various lens mounts—hard to beat that kind of enthusiasm. See the review of the Samyang 14mm f/2.8 in DAP.
For the Sony A7R / A7 (Sony E mount), Samyang has essentially added a built-in extension tube to the rear of each DSLR lens. It’s like adding a lens adapter, but without the adapter and additional flange between lens and adapter. A cool idea for which Samyang deserves credit. It doesn’t optimize the lens for A7R/A7 mirrorless use, but DSLR designs should generally perform well due to a long backfocal distance (digital friendly).
Versatility or convenience?
With a DSLR version of the lens, it can be used on that DSLR and the Sony with an adapter (versatility), or if it’s native Sony E-mount, no adapter is needed (convenience).