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abramwell
Joined: 17 May 2005
Posts: 427
Location: Gran Canaria, Spain
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Posted: Tue Sep 05, 2006 4:38 am
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I use Custom White balance on the D20 a lot but it has just occurred tome that I am not sure what exposure to use when. I take a full frame photo of a grey card and then use it to set the WB.
In theory the color temp shouldnt change with exposure unless it becomes blown out but is there and accepted standrad? |
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kenny123
Joined: 13 Aug 2005
Posts: 3635
Location: Masterton, New Zealand
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Posted: Tue Sep 05, 2006 9:07 am
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| abramwell wrote: | I use Custom White balance on the D20 a lot but it has just occurred tome that I am not sure what exposure to use when. I take a full frame photo of a grey card and then use it to set the WB.
In theory the color temp shouldnt change with exposure unless it becomes blown out but is there and accepted standrad? |
Hi, simply take a full-frame photo of a grey card and check your histogram-if the hump or peak is just slightly to the right of center,tailing-off to the bottom corner at each end, you have got it. Regards, Ken |
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kenny123
Joined: 13 Aug 2005
Posts: 3635
Location: Masterton, New Zealand
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Posted: Tue Sep 05, 2006 9:11 am
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| abramwell wrote: | I use Custom White balance on the D20 a lot but it has just occurred tome that I am not sure what exposure to use when. I take a full frame photo of a grey card and then use it to set the WB.
In theory the color temp shouldnt change with exposure unless it becomes blown out but is there and accepted standrad? |
Hi, simply set mode to P-shift,take a full-frame photo of a grey card and check your histogram-if the hump or peak is just slightly to the right of center,tailing-off to the bottom corner at each end, you have got it. change to manual mode using settings obtained from exercise. Regards, Ken |
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abramwell
Joined: 17 May 2005
Posts: 427
Location: Gran Canaria, Spain
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Posted: Tue Sep 05, 2006 9:18 am
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Perfect.
Thanks for the quick answer.
Alex |
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