50 f0.95 vs 28 f1.4 for low light

[rramesh]

Advertisement (gone after registration)

Two completely different lenses. I am not sure what camera you intend to mount them on, but with a M10 or M11, you don't really need lenses with very large apertures (and weight) unless bokeh is very important. A 28 Summicron and a 50 Summilux will make a good pair.

 

Edited June 19, 2022 by rramesh

[RexGig0]

I will add that the sensor’s resolution, and resulting pixel density, are important considerations in what shutter speeds will be acceptable. When I bought my first high-resolution camera, a Canon 7D, in 2010, those 18MP, on an APS-C sensor, “demanded” an immediate improvement in technique, and higher shutter speeds. (My previous camera had been a Canon 40D, with 10MP on an APS-C sensor.) When I started adding cameras with full-36mmx24mm-frame sensors, they had 12MP on those larger sensors, and so were much better for hand-held, low-light photography. This was with a Canon 5D, followed by a Nikon D700. (I started buying Nikon cameras, in order to share Nikon lenses with my wife, who was/is quite dedicated to Nikon.)

With full-36mmx24mm-frame sensors, my resolution jump was from 12MP to ~50MP, when I added a Canon 5Ds R, in 2016. This one “demanded” that I use much faster shutter speeds, and has never become one of my low-light cameras, unless using flash.

Now, with Leica M equipment, I am in no rush to “upgrade” to 40MP or higher, as so much of my photography is at night, or in near-darkness, especially during these hot Texas summers. (A South Texas Summer is not just three months, in duration.) I noted that David Farkas recommends using quite fast shutter speeds, when he writes or speaks about using the ~40MP M10 Monochrom.

Edited June 20, 2022 by RexGig0

[RexGig0]

Another consideration is the ergonomic factor. A lens that is a better fit, in one’s upraised left hand/fingers, is going to be significant, in using best hand-held technique. An ill-fitting lens may “cost” more than the difference in the shutter speed/focal length equation. I have somewhat long hands, but medium fingers, and relatively short thumbs, so, cannot pretend to guess what lens may be a good fit for another person.