Learning something new everyday.

[Patriot]

I try to make it my mission to learn something new everyday whether it has to do with the F-16's I work on or something with photography. Today I found out by mistake that one can physically see the focus point move on the focus screen reflecting off the mirror. I only found out because I just removed a M42 lens and still had the adapter installed. The camera was still on when I happened to see it in the corner of my eye. I always thought that the focus point was just a visual aid(which it is) found only inside the viewfinder.


How often do you try to learn something new? What was the latest thing you learned whether unintentional or intentional?