You can remove that little tip from bus hammers and glue them to the noses in order to instantly shatter any glass like material that comes into contact with it. Allegedly.
Most lenses only care about the angular light distribution, essentially averaging over the lens surface. So a ding or crack would just add a tiny portion of grey or black to the entire image
Edit: This is for cracking the front protective glass of a camera lens. If an actual optical lens splits in two it will be misaligned and bad things will happen.
You can remove that little tip from bus hammers and glue them to the noses in order to instantly shatter any glass like material that comes into contact with it. Allegedly.
Really only for tempered glass like car windows. Regular glass would just get a little ding.
A little ding is enough to render a camera lens pretty useless.
A cracked lens still takes pictures pretty well without any visual artefacts
Most lenses only care about the angular light distribution, essentially averaging over the lens surface. So a ding or crack would just add a tiny portion of grey or black to the entire image
Edit: This is for cracking the front protective glass of a camera lens. If an actual optical lens splits in two it will be misaligned and bad things will happen.
Allegedly.
Allegedly allegedly allegedly
So you allege.