6
Removing & Installing Level 1 Fog Protection
Level 1 Fog Protection Anti-Fog Coated Diopter offers a mild fog
protection. Good for average conditions, comes pre-installed.
1. To replace the diopter, remove three Phillips screws and remove the diopter
2. Install new diopter and tighten 3 Phillips screws back into place.
Place the Eyecup on one side
of the Gratical Lens Lip, and then
push down around the rest.
Installing Level 2 Fog Protection
Level 2 Fog Protection Anti-Fog Shield offers extreme Fog protection.
Included with Gratical, but does not come pre-installed.
1. To install Level 2 Fog Protection, peel off protective layer from both sides of
the level 2 Fog protection. Lay on top of the lens lip and remount eyecup.
Level 1
Diopter
Concave
(Facing Display)
Convex
Lens Lip
Anti Fog Shield
Level 2
