Quote Originally Posted by AgX View Post
I just looked at the two videos (showing that latest model):



Maybe I got a bad day, but I got no idea what at the display "m" and "M" mean. I am rather confused by what I see.

This shutter tester is build by me. M and m represents the Maximum value(1/M) and minimum value(1/m) of the last 10 readings.
I thought is useful to know these values when someone measures the same speed repeatedly.
If you have another questions regarding my tester please ask.