Nikon F shutter testing

This shutter of a Nikon F from the 1960s is almost as accurate as if it was electronically controlled.

[@tomscameras]

Nikon F's are just fantastic.

[@baylissprojects]

Did you make the tester? wish you'd make a guide :)

[@variopancolar6487]

Yes I made it myself :)

[@mastedi]

How old is that testing machine? From the red numbers, looks like from the 1980s.

[@variopancolar6487]

I made it myself.