User's Manual
6
Place the Eyecup on one side of the Gratical Lens
Lip, and then push down around the rest.
Level 2 Fog
Protection
Level 1 Fog
Protection
Concave
(Facing Display)
Convex
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.
Installing Level 2
Fog Protection
Level 2 Fog Protection
Anti-Fog Shield offers
extreme Fog protection.
Included with Gratical, but
does not come pre-in-
stalled.
1. To install Level 2 Fog
Protection, peel off protec-
tive layer from both sides
of the level 2 Fog protec-
tion. Lay on top of the lens
lip and remount eyecup.
Lens Lip