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.

• Binding :Electronics
• Brand :Opteka
• EAN :0049368821025
• Feature :Includes three color calibrated reference cards.
• Feature imensions 3.2″ X 2.2″ 0.1″ (83 by 50 cm)
• Feature :Logo label with focus target is affixed to one side of the grey card. Both sides of the cards are usable for white balance.
• Feature :Works with any digital camera, for JPEG and RAW files
• Feature :Certified performance and quality.
• Label :Opteka
• ListPrice :
• Manufacturer :Opteka
• Model :OPT-DGC
• MPN :OPT-DGC
• PackageDimensions :
• PackageQuantity :1
• ProductGroup hotography
• ProductTypeName HOTOGRAPHIC_LIGHTING
• Publisher :Opteka
• Studio :Opteka
• Title :Opteka Premium Reference Color & White Balance Grey Card Set With Quick-Release Neck Strap for Digital Photography
• UPC :049368821025
• Warranty :1 Year Warranty

5 Responses to “Opteka Premium Reference Color & White Balance Grey Card Set With Quick-Release Neck Strap for Digital Photography”

1. Robert A. Rodgers says:

   March 12, 2009 at 12:00 am

   This is SO EASY to use! I get some of the best photos when I use these cards before taking photos. Inside or out… I now try to always use these to get the white balance perfect.
2. Shibu M. Lekshman says:

   May 17, 2009 at 12:00 am

   It is a white balance grey card, and it is not for setting exposure. So guys beware of that.
3. HeroMOM says:

   October 4, 2009 at 12:00 am

   It was shipped quickly! I have no problems, I would recommend this seller and this product.
4. David Winters says:

   November 11, 2009 at 12:00 am

   Not much to it. Not a lot of money for a simple device to speed up your photo processing work.