the trick to an even covering is to not go mad for a start. tape up the front of the covers and stick both side by side...
then lightly cover both covers at once with alternate directions ie first do a vertical coat over both, wait for it to dry or go tacky (whatever the can says) then do a horizontal coat over both...
if you get any areas that havent covered then you'll need to clean them off properly and start again.
i hope this helps matey![]()
Do you spray the inside of the lense or outside ?