Most helpful positive review
30 of 30 people found the following review helpful
Great, but isn't automatic.
on August 4, 2008
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.