Pixel Perfect Camera Color Correction Card - 5" x 7" for Photo and Video - Reference Tool Grey Card Target White Balance Exposure Temperature Color Calibration Chart (2-Pack)

I bought this to do color calibrations on my pictures and videos, but also to compare the printout I made with my color laser printer to the actual colors. Because this is cardboard, I recommend keeping it in a plastic case. The best one I could find on Amazon has a B0CLL7Q1VG asin number. Search for that number to find it. Now that I have it, I see it is too large to fit in a pocket, so I may buy the smaller one too.

I believe it is an excellent product at a fair price. We use it to calibrate samples of flowers and other plant materials. We use it together with the OpenCV library. You can find my code on GitHub; the name of the repository is OpenCV-Color-Calibration.

The "gray" tones aren't even close to gray. This is printed on a cheap inkjet printer in RGB, not even CMYK, so the grays and blacks are literally purple. There are no true neutral tones in this card, not even close. A total waste. Don't buy.

The original Color Chart is big, delicate to handle and requires extra care to work as needed and avoid physical damage during use. These smaller versions of the chart not only have the same quality in terms of Color Calibration, but the size makes it ideal to pack for travel situations and location work in general. It can go in a camera bag! I store it in the original box for extra protection It is recommended for those photographers and videographers shooting outside the studio, but it also works perfectly fine indoors

Using them in a home studio with flash. For white balance they bleed through and see the color square shadows. For color, they are ok but I’m not color calibrating. I do like the larger size.

On the flip side of the 24-color squares is an 18% grayscale rectangle, for down-&-dirty color correcting. The 24 set is great for when colors absolutely have to be perfect. I was doing a coffee table book of an artist's work and got each piece spot-on every time. Well worth the price.

Good quality, and a good thickness of plastic material !

It feels flimsy and poorly made. No case for protection from scratches or dirt