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.

Product Details

• Brand: Opteka
• Model: OPT-DGC

Features

• 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.

Customer Reviews

Portable and Useful
A very helpful photography tool for setting white balance & compensation exposures. Glad I got it. The compact size (the cards fit in my Tamrac 515 camera case) and ease of wearing around my neck on the provided lanyard means I carry the cards with me anywhere I take my camera; without inconvenience, bulk or a lot of extra weight. It's a great product design. Glad I bought the set - it's useful to have the white and black as well as the 18% grey cards.

Does not seem totally accurate, slow shipper
I got this card recently, although I was surprisedd how long it took to ship. I got it due to the low price, but I guess low service goes with that too. I wish I had checked 47th streets photos' ratings cuz i guess there have been quite a few bad experiences. The delay caused me to miss a graduation photo shoot I wanted to have the card for.

Since I got the card I have used it at a friends wedding, I have to say this may not be the most accurate card out there. My colors were a bit off - there seemed to be a bit of a yellow cast to a bunch of them, especially the ones taken indoors. I have to check the card under controlled lighting to be sure, but so far it's just a bit off. Under daylight this card seems to be OK.

The cards came with a lanyard which does the trick and keeps them easy to find. I did find the cards a bit small at first but then I noticied I can still get a gray card photo even if the card is not focussed perfectly. So if this card seems small it may still work for you. I think I'll get one of the larger cards to play with and see if the colors are any better.

I didn't get instructions or anything but I know pretty much how to use one of these cards. If yur not a real photo bug you should get one of the cards with detailed instructions.


Overall, this was OK for the price, but the shipping delay was an annoyance. I'd maybe spend a few dollars mare for a slightly better card for the accuracy.

Perfect
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.