Originally posted by Sandy Hancock It is very sharp wide open and f/2.4 is more than adequate for shallow DoF (without getting ridiculous) with lovely bokeh.
While I fully agree f/2.4 is more than enough in many occasions, one should not overlook that wider apperture can be handy on the occasion. This is really a compromize between price/size/capabilities for me and what one care.
So depending of what you are after and or the compromise, you might not want it. i know for sure I would avoid the samyang because for me it would be near impossible to focus it correctly on the viewfinder with my bare eyes. I would not want it because it is big/heavy and I dislike this kind of lenses that reduce my joy of taking photos.
So in the end I settled for FA77 f1/.8 some will settle DA70 or sigma 85mm f/1.4 or the samyang... Different compromize, different price, different possibilities.
But I dont get the without getting ridiculous part of your post. Here a few shoots from flickr (not mines) from using 85 f/1.4 lenses... The kind of things you'll not get at f/2.4... and I think this is not ridiculous: