Adjustable frames help keep the lens at the correct angle for your eyes if you tilt your head a certain way from my understanding. So if you tilt your head at a certain angle you can adjust the frame to keep your prescription from getting out of focus at that specific head tilt
if you look closely you can actually see a literal blinder over her left eye! the reason it helps is because precision shooting is all about repeatability, and both eyes open is a more repeatable position than closing one eye exactly the same way every time
Anybody who knows about this: how do those gizmos help? E.g. earplugs are useful without performance-enhancing.
Adjustable frames help keep the lens at the correct angle for your eyes if you tilt your head a certain way from my understanding. So if you tilt your head at a certain angle you can adjust the frame to keep your prescription from getting out of focus at that specific head tilt
It’s all about directing eyes and blocking distractions
High tech blinkers
if you look closely you can actually see a literal blinder over her left eye! the reason it helps is because precision shooting is all about repeatability, and both eyes open is a more repeatable position than closing one eye exactly the same way every time