The Neewer Gray and White Card set has cards that measure 8 inches by 10 inches, which is quite a handy size. They're designed for both digital and film photography to help you get your exposure and color balance just right. According to the manufacturer, the set includes an 18% gray card for accurate exposure settings and color corrections, alongside one gray card and one white card.
Now, from what we've gathered, people have mixed feelings about these cards when it comes to color accuracy. Many folks find them durable and effective for balancing light, achieving a neutral white balance in different lighting conditions, and overall, they seem to be well-regarded for their ease of use and sturdy build.
However, there are some issues to keep in mind. A few have mentioned that sometimes the gray card doesn't quite hit the 18% reflectance mark, occasionally showing a color cast like a bluish tint. This can be a bit annoying if you're relying on it for precise white balance or exposure settings. One reviewer even mentioned it having a magenta shift compared to traditional Kodak gray cards, which might throw off your color corrections.
If you're working in a professional setting where color accuracy is critical, or if you're doing very precise work, you might want to double-check the cards' accuracy before fully relying on them.
Overall, while they do a decent job for general exposure tweaks, just be aware of their limitations if you're dealing with projects where perfect color accuracy is non-negotiable.
