Tapani Tarvainen

f/0.5 is for sissies. How about this 82mm f/0.38 lens:
https://archive.org/stream/USAF_lens_datasheets/01-Section-1#page/n24/mode/1up

My completely unscientific observation based on a tiny sample suggests that approximately 90% people only ever use default settings with their phone cameras. That's probably biased to the low side...

They also fixed some things silently, e.g., R5 intervalometer with back button focus now works.