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The color values of Opteka Digital Grey Card set have been tested under varying light conditions and show a high degree of spectral neutrality. Using the industry-standard X-Rite spectrophotometer, LAB values of L* 63.8, a* -1.6, b* -0.4 are measured from the surface of the grey card under D50 standard illuminant. For optimum color correction, the black card achieves truly deep blacks (RGB 16,16,15). The grey card displays superior spectral neutrality with measured values of 162, 162, 160. The white card has a tested RGB value of (220, 224, 223). All three cards have excellent uniformity across a range of light sources.

• Includes three color calibrated reference cards.
• Dimensions 3.2″ X 2.2″ 0.1″ (83 by 50 cm)
• Logo label with focus target is affixed to one side of the grey card. Both sides of the cards are usable for white balance.
• Works with any digital camera, for JPEG and RAW files
• Certified performance and quality.

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Have you ever wondered how Karl Pilkington got where he is today?

This book is an unofficial biography of the genius who has brought us some of the best quotes in recent times.

Explore Karl’s rise to super stardom in this micro guide kindle book. A great point of reference for any fan of the witty Manc.

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Film Noir: An Encyclopaedic Reference

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Film Noir: An Encyclopedia Reference to the American Style

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Film Noir: An Encyclopedic Reference to the American Style

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