I have just got my hands (back) on the M50 f1.4 - a great lens.
Just been messing about, practising my manual focussing and experimenting with the razor thin DOF.
Have noticed that trap in focus (from near-to-far) gets decent focus about two thirds of the time...
All wide open - not a bad performance for a 30 year old F1.4 lens IMO. In fact, I'll link this page to my review.
No post processing on any - JPEGs straight from the camera.
Fence:
F1.4, 1/1000, ISO 125
(100% centre crop):
Flower:
F1.4, 1/640, ISO 100
Grapes:
F1.4, 1/30, ISO 320
Gravel:
F1.4, 1/2000, ISO 100
Hose:
F1.4, 1/800, ISO 125
Just noticed all look a touch underexposed on this laptop; they looked OK on my other two monitors.