Do you have any experience with ND filters for P3S from www.phantomfilters.com? I just ordered 4 ND filters from there so I will let you know after I use it...
Could not find filters for Standard, only Adv/Pro.
You can make it just right, not too loose, not too tightSo they could be too tight to be removed from the camera, or too loose to fall off?
I think stick-on will be best for the standard.
Will try to get out later to see what they perform like.
Looking at your pictures in #13 they look smaller...same as camera !