I think many of us cannot justify the cost of buying a FF camera. So what can you do if u like full body bokeh portrait ? the natural choice will be 35mm f1.4. Samyang is the cheapest option here.
But I don't really like the bokeh i see in the images taken using a 35mm f1.4, even on a FF like 5D.
For bokeh, the longer focal length is still the best... so the FF or even medium format, large format clearly has the advantage here for shallow depth of field images.
see for yourself:
this of course should applies to all 35mm lens , not just Samyang.