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Opteka 8" X 10" Digital Color & White Balance Grey Card Set for Digital Photography (Includes Grey, White, & Black Reference Cards) | 
| Brand: Opteka
Category: Photography
List Price: $49.00
Buy New: $14.95
as of 2/9/2012 21:05 PST details
You Save: $34.05 (69%)
New (1) Used (2) from $12.71
Seller: 47th Street Photo
Media: Electronics
Shipping Weight (lbs): 0.7
Dimensions (in): 11.2 x 9.1 x 0.7
MPN: DGC-LARGE-8X10
Model: DGC-LARGE-8X10
UPC: 049368827126
EAN: 0049368827126
ASIN: B002P5DNY8
Shipping: Eligible for FREE Super Saver Shipping
Promotion: Data not available Terms and Conditions
Availability: Usually ships in 24 hours
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| Features:
| • | Includes three color dual-sided calibrated reference cards. | | • | Dimensions 8" X 10" X 0.15" | | • | # Works with any digital camera, for JPEG and RAW files | | • | Certified performance and quality. |
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Product Description
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.
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