 BetterPhoto Member |
White Balance I have a Canon 20d and want to know if I need to adjust the white balance when I do studio photo's. I have two monolights which I measure with an incident meter, I normally shoot at f8 or f9, but the face is usually overexpoosed, and how do you read and adjust by the histogram? Diann
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Bob Chance |
Well Diann, I can't tell you about the histogram, but I know there are plenty of people who frequent this sight who are more knowlegable about that and who could answer that question. As far as your exposures, I'm not sure how only the the face is overexposed? Assuming your meter is set to read at the same ISO the camera is set for, and that you are taking your readings at the subject, then your exposures should be accurate. There are a lot of varibles in Digital Photography. Even I have noticed with my 20D, sometimes the exposure looks good on the cameras LCD, but then on the computer they look quite dark. As for the white balance, the 20D offers a remarkable number of ways to handle this situation. Page 50 of the user manual explains the differnt ways of selecting white balance settings. You can select the preset setting for flash that the camera provides. If you have access to a colorometer, you can measure the Kelvin temp of you monolights and set the cameras maunal setting to that temp. Or, under the monolights, once you've established correct exposure, take a picture of a white object, poster board or what-have-you, then in the menu select Custom WB. Turn the selection dial to bring up the picture of your white board and press the set button. The camera will adjust the white balance according to your picture. From there, you can fine tune using the WB shift/bracket function in the menu. Hope this helps. Bob
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Mike Carpenter |
ALWAYS use your histogram. If it goes off the right side your exposure is to long or your to wide open. Either shorten your exposure time or stop down a little. If your usingstrobes then your going to have to adjust to say f11 or f16.
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