mike_311 wrote in post #14151943
but the bokeh on a 50/1.8 is terrible unless you like pentagons.
For night shooting, the usual workaround is to shoot wide open so aperture shapes aren't seen. These are not restricted to polygons. Since fast lenses are typically worse wide open than slow lenses (although they may be better at the same aperture) many people prefer slow lenses for night shooting.
It wasn't the Canon 50mm f/1.8 that I was using but one from a different camera system, with 6 blades. Still, I took shots at several different apertures and the ones I liked best were wide open.
Tony_Stark wrote in post #14152204
However, my recent shootings I'm heavily considering the 50 1.2.
I haven't tried night shooting with mine yet, but I would expect two problems wide open: (1) the cat's eye bokeh typical of very fast lenses, and (2) the chromatic aberration this lens has wider than f/2.2. So it probably needs to be closed down, but then you probably get aperture shapes.
As well, if "filming" really means video, that very much tips the balance in favour of any number of legacy f/1.8 and f/1.7 lenses from other camera systems, mounted via an adaptor.