A soldier looks through the optical sight of a rifleA soldier looks through the optical sight of a rifle
A weapon with an optical sight in a room with paintings on the wallsA weapon with an optical sight in a room with paintings on the walls
A military man in an ambush looks into the optical sight of his weaponA military man in an ambush looks into the optical sight of his weapon
A classic optical camera is better than a digital oneA classic optical camera is better than a digital one