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Percent gray doesn't matter for color balance (n)

Posted By: Rick Campbell (67.1.38.136)
Location: Corvallis, Oregon, USA
Date: Wednesday, 23 July 2003, at 7:00 p.m.

In Response To: getting 12% or 15% grey card????? (Gabe Choy)

For setting the custom white balance on a digital camera, it matters that the color of the test target is pure gray or pure white. It doesn't matter if the reflectivity of the target is 12% or 18% or whatever. The percent of gray reflectivity is only relevant for setting the exposure level, not the color balance, and I think Gabe already knows how to get proper exposure level.

On a related topic, keh.com often has used color meters for under $300.

Regards,
Rick Campbell

(Model: Sarha R.)

Photography by Rick Campbell

Messages In This Thread

• Color temp -vs- strobe output level
  Gabe Choy (172.194.107.55) -- Wednesday, 23 July 2003, at 1:04 a.m.
  • Link to strobe test
    Gabe Choy (172.194.107.55) -- Wednesday, 23 July 2003, at 1:09 a.m.
    • Well... Sort of...
      Jim Wimmer (12.230.78.211) -- Wednesday, 23 July 2003, at 2:06 a.m.
      • Now you have me wondering
        David Cooke (12.206.106.66) -- Wednesday, 23 July 2003, at 2:15 a.m.
        • Re: Now you have me wondering
          Jim Wimmer (12.230.78.211) -- Wednesday, 23 July 2003, at 2:45 a.m.
      • Re: Well... Sort of...
        Gabe Choy (172.196.237.80) -- Wednesday, 23 July 2003, at 3:40 a.m.
        • Re: Well... Sort of...
          Jim Wimmer (12.230.78.211) -- Thursday, 24 July 2003, at 2:54 a.m.
  • Re: Not an issue for me
    David Cooke (12.206.106.66) -- Wednesday, 23 July 2003, at 1:46 a.m.
  • Re: Color temp -vs- strobe output
    Michael and Barbara Jarboe (4.41.209.191) -- Wednesday, 23 July 2003, at 2:17 a.m.
    • U throw a lot of good info for us, but you missed.
      Gabe Choy (172.196.237.80) -- Wednesday, 23 July 2003, at 3:22 a.m.
      • Re: U throw a lot of good info for us, but you mis
        Michael and Barbara Jarboe (4.41.209.191) -- Wednesday, 23 July 2003, at 11:43 a.m.
        • getting 12% or 15% grey card?????
          Gabe Choy (216.254.59.163) -- Wednesday, 23 July 2003, at 1:07 p.m.
          • Call Pantone and Canon
            Michael and Barbara Jarboe (4.41.209.191) -- Wednesday, 23 July 2003, at 1:47 p.m.
            • "It sounds wierd". not at all, simple basic rule..
              Gabe Choy (216.254.59.163) -- Wednesday, 23 July 2003, at 2:42 p.m.
          • Percent gray doesn't matter for color balance (n)
            Rick Campbell (67.1.38.136) -- Wednesday, 23 July 2003, at 7:00 p.m.
    • You don't have problem with full size sensor.
      Gabe Choy (172.196.237.80) -- Wednesday, 23 July 2003, at 4:08 a.m.
      • Interesting, but...
        Jim Wimmer (12.230.78.211) -- Thursday, 24 July 2003, at 2:42 a.m.

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