I just got this new lens, thought I would open a new thread.
I already own the Samyang 14mm f/2.8 but I find it:
- a little too wide
- distortion is very hard to correct in post
I was tempted to buy the Sigma 20mm f/1.4 Art but it is too heavy and too big for my needs.
I thought long and hard about buying the Samyang 24mm f/1.4 but the extra 4mm do make quite a difference and the new Samyang uses a 7-blade aperture which produces nice 14-point stars.
I tried the 20/1.8 in a store and that copy was super sharp from corner to corner, wide open. I bought it straight away and so far I am blown away.
At f/1.8, it is almost as sharp as my Sigma 35mm f/1.4 Art.
The bokeh isn't very pronounced but the lens focuses very close and the background blur is pleasing.
Distortion is well controlled and unlike the 14mm, it is easy to correct in Lightroom.
Here is a quick shot, wide open, flying over London.
Canon 6D + Samyang 20mm f/2.8
20mm | f/1.8 | 1/30 | ISO6400