How shutter speeds were measured in milliseconds... MECHANICALLY

[Duceman]

Fun little video on how Leitz would measure shutter speeds at the factory back in the day.

 

[eli griggs]

I watched this a few days back and it's worthwhile to see how it's done.

 

[canaq]

Wonderful to see how this is done mechanically, I love this old mechanical tech

 

[ic-racer]

Here is a Historical Overview of shutter speed testing with references (not mine):

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914955/pdf/sensors-22-01871.pdf

 

[snusmumriken]

I knew about the device, but it was great to see it in action. Great video, thanks for the link.