Wing bending measured in flight during turns

[Gaston444]

Hello everyone. I cannot find my original posting: I wanted to know if for low wing single engine prop aircrafts there had ever been measurements done while in flight of the actual wing bending during sustained turns...

The types I am interested in would have to be similar in size and power to a typical WWII fighter.

I am guessing a simple camera looking down the wing leading edge could have been used...

Thanks in advance.