Hey everybody.
Newbie here with some dust particles on the inside of the viewfinder/focus screen. Requesting advice as to what over the counter products or solutions are available to clean this. I've isolated the problem to it being dust on the viewfinder. Lens is fine, mirror is fine, sensor is fine, but i'm curious if i should call canon for a mail-in or over the counter solution. Also the dust looks like small dried up water droplets. Any advice on how to fix my baby.

