Limited time deal. 0% claimed at time of post. I've not seen them drop below $90 anywhere in the last year or so and currently are $100-132 in all the usual camera shops.
Newer Sony bodies like the A7CII and A6700 have had AF problems (constant hunting) with Samyang/Rokinon lenses unless you upgrade the latter's firmware, making this crucial rather than eh-lens-works-fine-without-it if you plan on sticking with Sony long term ie upgrading your current Sony one day.
Specifies it's for Sony's E lenses rather than FE but Samyang's own US site and Korean site don't show a separate FE version, so I assume it must work on both.
isnt this super spicy