Shutter operation verification on Bronica ETRS-i 

Turns out that the sound of the shutter is dominated by the sound of the mirror folding away, and different speeds sound almost the same, except for a very soft closing click. (The mirror doesn't automatically fold down after exposure, like it does on 35mm SLRs).
So the shutter speeds are working plausibly, contrary to the conclusion I reached in my previous video on the topic.