By holding the Blue Ring Gaffer’s Glass™ up to one eye while standing no less than 10 ft away from the source of the light, you can look through the Blue Ring Gaffer’s Glass™ into your key light while your assistant focuses the light to your liking. This will give you a precise pattern for where your light will be thrown, it also gives you an idea of drop off and voids.

The Blue Ring Gaffer’s Glass™ is also used to check the condition of light filament, and to locate the sun when it is behind clouds. The Blue Ring Gaffer’s Glass™ is not designed to look directly at the sun. Use it only to locate the sun through clouds.

The Blue Ring Gaffer’s Glass™ features 6061 aluminum with anodized finish, glass has a 3.8 density with UV inhibitor, and a 36? lanyard to be conveniently worn around the neck. This tool is a must have for all Gaffer’s and DP’s Worldwide.