
Average Reviews:

(More customer reviews)When I first got this card, I thought all my white balance problems were fixed. However, as I used it for a few months, it became clear that it is not a dummy-proof solution.
It is imperative that you get a shot of the card in exactly the same lighting conditions as the picture you want to adjust in post-processing. This can be a challenge if you're outside with your kids and you're poking in and out of buildings and the trees are casting deep shadows in an otherwise sunny day. You'd potentially have to get many card exposures for all the various light settings you encounter throughout the day. The immediate surroundings have a large effect, as well. Take the same sunny conditions, and pictures on a grass field will have a different tint than ones taken on parking lot or on a brick road.
I also noticed that chromatic noise skewed my post-processing attempts when I used my software's water-dropper tool. If I happened to pick a pixel that was actually a blurp of chromatic noise, then the WB got terribly skewed. So, I'd either have arbitrarily pick a pixel that looked grey to me or smooth the results with chromatic noise reduction. Best results are had with well-exposed, low-ISO pictures where the card shows up as a uniform, solid grey with as little noise as possible.
Though with the caveats above, I highly recommend this card. It's easy to carry and is a better WB solution than relying on in-camera settings or eyeballing it in post-processing (which works, too, if you can get the hang of it). Remember to constantly take shots of the card and using the lowest ISO and you should get accurate results in post-processing.
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GENUINE WhiBal G7 Certified Neutral White Balance Card - Pocket Kit (2.1"x3.3")With more than 40,000 customers, the Genuine WhiBal has become the standard in the industry for precision WB Reference "Gray Cards". Each and every card is measured with a precision spectrophotometer to assure you that *your* card meets our industry leading specification of +/-0.5 within the a* and b* channels. Do not be fooled by RGB measurements (they have no meaning in this context). Very simply, WhiBal combines all the best features of all available White Balance cards, and meets or exceeds their technical performance in a unique package that can be used conveniently in all your shooting situations. In addition, WhiBal provides convenient neutral White and Black reference areas for setting dynamic range in your digital capture using the Black and White Eyedroppers available in RAW conversion software, PhotoshopTM, and most other editing software. Check out the educational videos on-line. (Search for WhiBal). They tell the entire story.Feature Summary:? It fits in your shirt pocket.(same size as an American business card ...2.1x3.5 inches)...so you will actually use it rather than have it in your bag! ? It is basically indestructible, waterproof, etc ? Both Pocket and Studio versions come with convenient stand for ease of setup on tables or flat surfaces. No need for someone to hold the WhiBal. ? All 4 reference "colors" are essentially equal to or better than all tested "reference cards" for neutrality and spectral flatness. ? All cards are designed for low reflectivity, except the BlackPoint sticker which intentionally is highly reflective so that maximum Blackpoint level may be achieved. ? Larger are smaller sizes are available ? Can be used to set white balance reference, Black point and White point. ? Fits shirt pocket or can hang on studio hook or lanyard, or set on a table with included table stand. ? WhiBal is a product of PictureFlow LLC, is patent-pending and proudly made in the USA.

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