Digital Image Flow DGK Color Tools Premium White Balance Card Set with Premium Lanyard Set of Three Cards

I bought this set with risk (expensive & don't know if it work ok or not). Turn out I am SO HAPPY with this purchase. I did the card test: Took a picture of this set - Put this unbalanced picture to Photoshop to white balance it - Measure the balanced picture with Photshop sampler tool and find all RGB are equal; R=G=B. That's mean it neutral 100%. I did the camera picture test: Took serveral pictures with different light sets - white balance the pictures with this GreyKard tool. Result color in pix look very much match the real physical subject. So 5 stars for this GreyKard. Some notes, may be you like to read: This little GreyKard may not too great for doing Pre-Blancing for camera internally because it is so small in size. This GreyKard set is great for Post-Blancing using camera software or Photoshop. This is what I like for convenient GreyKard for Post Processing, reason: Post Processing allow me 2 choices (2 sets of image) to pick, First is the original pix; Second is the my white balance touched pix. Sometime the my white balance touched pictures turn the color look so real that make the people in my pictures look like "Living dead in front of a warm burning fire place" so I throw out the white balanced pictures and keep the original AWB pix. That is so good this GreyKard set. If some subjects originally look ugly, it will make it true ugly as original.

The manufacturer goes to great length to say these are certified for Adobe for Photoshop. But why in the heck would they place a product "sku" sticker on the gray card (the most used for color balance)? Sort of minimizes the certification "feature", in my opinion. On that basis, 3 stars rather than 4 or 5.

The three credit card size pieces of plastic work as advertised - they allow instant color correction in PhotoShop. They must be angled correctly or the glare from the flash appears white on both the gray and black cards. They are not large enough for me to use to set custom White Balance in my camera, but they are small enough to easily fit in my shirt pocket without any problems. This product will probably become standard in my portrait photography workflow, but I was a little disappointed when I opened the package - three credit card size pieces of plastic. My guess, and I may well be wrong, is that the packaging costs more than the product.

This is the first time Ive used a grey card and a white card at the same time. When reviewing your custom white balance settings its easy to check the levels of all three ( Grey, White, and Black ) all at once. I just fan the pack out and center on either the white or grey card depending on the balance I desire. Its also perfect fanned out for a guide shot to be used later in post to set grey, white, & black levels. Its small and easy to wear around your neck. No need to pull it out of your pack every time you need it like larger cards.

The white balance not neutral and the gray does not match white, also not neutral!

Portable, quite useful but can give very confusing results if not used properly. Different degrees Kelvin are indicated, depending on which processing software is used.

I think this is my first review in the years I've been on Amazon, but for once I feel that I need to speak out on a bad product. I bought both the DGK and the WhiBal White Balance Reference Card - Pocket Kit (2"x3.5") and I have to say that the WhiBal just feels better and feels that it will last a lot longer(the DGK cards are only about the third of the thickness of a WhiBal). However the Digital Grey Kard has one thing going for it, it has a superior laynard. I would recommend spending a few bucks more and get the WhiBal White Balance Reference Card - Pocket Kit (2"x3.5") instead.

I have had this for over 6 years I think, and it's still holding up great! If you keep them clean and take care of them, they will last a long while. I did have to re-inforce the connecting part with fishing line after a couple years but no biggie at all. The color balance you get is very good.

does the job, it is a very handy size, about the size of a credit card, may be a little pricey

Digital Grey Kard Premium White Balance Card / Gray Card for Digital Photography Does what it says on the tin. Easy to use.

A bit expensive for what it is, maybe better to buy some card from an art shop!

These are OK but they have to be perpendicular to the camera lense or flash to avoid some reflection. They are a little more flimsy that I expected and they appear to discolour if scratched. I think it's worth the extra money to buy the genuine WhiBal but these are not available at Amazon UK - you need to go to the U.S. site for these @ http://www.amazon.com/GENUINE-WhiBal-Certified-Neutral-Balance/dp/B000ARHJPW - this model has all three colours on the same card and a focus aid.

Handy addition to a beginners photo kit. Helpful tool when working with white balance. The product was well packed and deliverd on time. I thought the item was a little expensive for what it is.