The White Balance Card Set from Opteka provides an 18% gray card along with white and black reference cards. With your digital camera, the gray card helps you to determine accurate exposures, the white card achieves the optimal color balance under any lighting situation, and the black card can be used as a reference point when editing your images in a post-production software. Also, the included lanyard helps to manage your cards while using them. Includes Opteka White Pocket Card Opteka Black Pocket Card Opteka Gray Pocket Card Opteka Lanyard Opteka 1 Year Warranty.

Package includes three color calibrated reference cards and premium landyard with a detachable clip. Compact, sturdy and Lightweight. Net weight: .32 oz. Card size:3 1/3 x 2 1/8 inches. Small enough to keep in your pocket or on a key-chain. Perfect for setting exact color balance. Works with any digital camera. Perfect for DSLR, Video, Film and Photography. Neutral 18% Grey / Gray Card with matte finish for scratch resistant. Non Reflective and Waterproof.

Manufacturer: Opteka. Date First Available: September 12, 2008. Best Sellers Rank: #40 in Photographic Light Meter Grey Cards. Customer Reviews: 4.3 out of 5 stars 200 ratings 4.3 out of 5 stars. Item model number: OPT-DGC. : B001G04VJO. Item Weight: 0.16 ounces. Product Dimensions: 3.4 x 0.1 x 2.2 inches.