shane_gilbert1 Posted September 7, 2004 Share Posted September 7, 2004 On a whim about a month ago I experimented doing my Custom White Balance with a Grey Card and found I was getting Much Better results over using a White Card. I was just wondering if anyone else did CWB this way. I use Nikon D-100's with Photogenics mono-lights if it matters. Any thoughts... Link to comment Share on other sites More sharing options...
steven_muncy Posted September 7, 2004 Share Posted September 7, 2004 A calibrated gray card will yeild consistant results as it should be color neutral. It should actually be better than whatever "white" card is available. Link to comment Share on other sites More sharing options...
stephen_martin2 Posted September 7, 2004 Share Posted September 7, 2004 when I shoot table top I use a grey card. then I process the raw image in Capture One Pro and select the grey card image to set my white balance for the rest of the images. to clearify this I choose either the flash or tugstan setting on my Canon 10D then I photograph a grey card. I find that the setting's on the 10D are pretty good. but when it comes to my table top work it has to be right on. you may even find a Macbeth color card useful. Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted September 7, 2004 Share Posted September 7, 2004 The "white balance" on my Phase One PowerPhase digital 4x5" back is done by doing a prescan; and then placing an eyedropper tool on the grey object or card in the scene. A grey card is not going to be saturated. A super white object might be. A neutral grey card about any percentage of grey can be used. Link to comment Share on other sites More sharing options...
peter_witkop Posted September 7, 2004 Share Posted September 7, 2004 A white balance from a gray card is better than a white card because if any of the chanels are over exposed, the white balance won't be correct, with a gray card you'll have an accurate value for each chanel. Peter Link to comment Share on other sites More sharing options...
joe_r1 Posted September 8, 2004 Share Posted September 8, 2004 There are 2 kinds of gray cards. Traditional gray cards (like Kodak) are used to calculate exposure for shooting black & white film. They are not balanced for digital photography. A "digital gray card" is calibrated for white balance R128 G128 B128. You can get a 4x6" digital gray card for about $10 at a camera store, and they work really well. Link to comment Share on other sites More sharing options...
beno_t_marchal Posted September 9, 2004 Share Posted September 9, 2004 <p>Have a look at <a href="http://www.pictureflow.com/products/whibal/WhiBalCharts.html">comparison charts</a>. Athough intended to sell you a product (which I don't own, so I won't comment on it), they are useful because they include measurements for almost every reference used for white balancing.<p>If you compare the spectral charts of the grey references with the charts of the white references, you will see that the greys are more neutral across the spectrum. E.g. look at the Kodak grey card (which I use) and you'll see the grey side is significantly more neutral than the white side. More neutral means better color balance.<p>--ben<br><a href="http://www.marchal.com">marchal.com</a> Link to comment Share on other sites More sharing options...
beno_t_marchal Posted September 9, 2004 Share Posted September 9, 2004 Sorry, that's white balance... not color balance. --ben Link to comment Share on other sites More sharing options...
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