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Opteka Medium 5 X 4 inches Color and White Balance Reference Grey Card Set With Quick Release Neck Strap for Digital Photography

Includes three color calibrated reference cards
Dimensions 5″ X 4″ 0.1″ (130mm by 100mm)
Logo label with focus target is affixed to one side of the grey card. Both sides of the cards are usable for white balance

The colour values of Opteka Digital Gray Card set have been tested underneath varying mild prerequisites and display a prime degree of spectral neutrality. The use of the business-same old X-Ceremony spectrophotometer, LAB values of L* 63.8, a* -1.6, b* -zero.4 are measured from the skin of The gray card underneath D50 same old illuminant. For max colour correction, the black card achieves really deep blacks (RGB 16,16,15). The gray card shows superior spectral neutrality with measured values of 162, 162, 160. The white card has a tested RGB price of (220, 224, 223). All three cards have superb uniformity across a spread of sunshine sources.
Contains three colour calibrated reference cards
Dimensions five” X four” 0.1″ (130mm by 100mm)
Emblem label with center of attention target is affixed to at least one aspect of The gray card. All sides of the cards are usable for white balance
Works with any digital camera, for JPEG and RAW files
Lanyard Strap Included

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