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What is the function of the custom white balance setting?

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Re: What is the function of the custom white balance...

Custom setting mode allows a user to calibrate the camera to a specific light condition. Color reproduction may be inadequate with preset white balance settings in mixed lighting condition or when critical control is needed. You can calibrate the camera's white balance to the specific light condition (color temperature) so that the lighting of the selected area is neutral.

Posted on Sep 13, 2005

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The camera is taking pictures that look pink. All the setting are correct.


which model of camera? Do you have white balance capabilities or custom color settings capabilities? All your settings may be correct, BUT if you have a custom white balance that you do not know about, all you need to do is turn it off.

Oct 06, 2009 | Canon PowerShot A95 Digital Camera

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I am a surgeon when I take pictures of muscle or bloody objects the red color seems to melt and the red is overly saturated and all sharpness and definition to the photo is lost usually taken with a...


The Fuji S2 sensor is noted for this red sensitivity. Here's a few different approaches to getting the shot with the S2, all of which require some experimentation.

1. Set the "Color" and "Tone" Function options to "ORG". Underexpose the shot. Progressively change the exposure compensation downward until when checking the histogram, the red channel does not show saturation at the high end. Advantages: this is the simplest approach to getting the picture. Disadvantages: the S2 already had a fairly limited dynamic range, and this will make things worse for the parts of the photo that are not red. For the surgical setting and use of a ringflash, this may not be much of a disadvantage, since a lot of the stuff of interest will be red, and ringflash illumination generally is of lower contrast than directional lighting.

2. Set the "Color" and "Tone" Function options to "ORG". Use a custom white balance. The idea here is to have the camera adjust the red channel sensitivity itself, and leave the blue and green channels alone. To do this, start with several sheets of white paper and a red or pink marker or highlighter. Scribble with the marker across a sheet, then use that to set a custom white balance. Take a test shot of the red stuff that has been problematic, and see whether the histogram for the red channel shows that there is no saturation at the high end. Repeat this with progressively more red or pink on each sheet used to set the custom white balance until you find the custom white balance that takes enough of the edge off the red channel response. Alternative: I just tried out making a gradient across an 8.5x11" sheet of paper going from white to about 30% red saturation. I can set more or less red adjustment in a custom white balance just by pointing the camera at different parts of the page. This seems to work OK for me. Advantage: can allow the full dynamic range of the sensor to be used. Disadvantages: the experimentation period is likely to take a while to get the best results, and the final images are unlikely to look completely natural.

3. Set the "Color" Function option to "B/W". Use a green or cyan filter on the lens to cut the amount that the red color channel contributes to the final image. Advantages: this is fairly simple as an approach. A similar post-processing technique can be applied to the photos that you already have, by nulling out the red channel contribution and desaturating the blue and green channels to produce a grayscale image. Disadvantages: you lose the color information entirely. Since much of what you want information about is colored red anyway, the organs are likely to appear quite dark when only taking the blue and green channel contributions to the image.

Feb 26, 2009 | Fuji FinePix S2 Pro Digital Camera

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Pentax istDS Digital Camera, How to set Custom White Balance in Auto Modes


Custom white balance can only be set in P, Tv, Av, or M modes. The auto modes are, well, automatic. They are all preconfigured and intended for ease of use not configurability.

Nov 08, 2008 | Pentax *ist DS Digital Camera

1 Answer

Setting custom white-balance


F1 or 4 are white balance memories, rather than buttons to set the WB.
Menu > Custom WB > Right Arrow > Select F1 or F4 > 
Then put your piece of white card in front of the lense and hit the shutter button. Make sure you haev enough light though !
dave

Jul 26, 2008 | Fuji FinePix S2 Pro Digital Camera

1 Answer

Colour balance with setting in the D40


Your white balance setting is too warm. Try setting a custom white balance or move your current white balance towards the "Tungsten" end. "Cloudy" is a good start.

Jul 26, 2008 | Nikon D40 Digital Camera with G-II 18-55mm...

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XT problem with white balance/aperture


You should be able to set your white balance by taking a photograph of something white filling the screen with the correct exposure. If it is underexposed, you will not get white, it will look yellowish. Make sure while you are photographing the object, you switch your lens focus mode to manual.
Go the second setup (tools) tab and select custom wb. The custom white balance screen will appear and you will choose the image that you want to base the white balance off of by pressing the set button.
This will take you back to the menu. Go back to white balance and choose custom wb down in the bottom right corner of the screen.

Hope this helps!

Jun 04, 2008 | Canon Rebel XT / EOS 350D Digital Camera

2 Answers

Manual white balance


Click the AF-WB button and then with the wheel in the back of the camera select either K or any of the other settings. If set to K then you must go to your Menu (click menu button on back) then go to Color temp. and select your Kelvin tempature. Hope that helps....

Sep 14, 2005 | Canon EOS-10D Digital Camera

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White Balance


Color reproduction differs depending on the lighting conditions. For instance, when daylight, the setting sun or indoor lighting is reflected on white paper, the shade of white produced will be slightly different for each. By setting the WB (White Balance), you can achieve more natural-looking color. You can also preview different color tones by trying the different settings under the actual light source, and checking the result on the viewfinder and monitor. You can choose mode from Auto, Preset 1, Preset 2, Custom, One-touch, and White balance compensation.

Sep 04, 2005 | Olympus Camedia C-8080 Wide Zoom Digital...

1 Answer

Balance Function


This function is useful when you need more precise white balance than the Preset White Balance can provide. To set the optimum white balance for the shooting conditions, point the camera at a white object under the light source that you want to use, and press the OK button to set the white balance.

Sep 04, 2005 | Olympus C-7000 Zoom Digital Camera

1 Answer

Should the custom white balance feature be used with or without a flash?


You can use customer white balance with or without a flash. If you use a flash to do a custom WB, you must adjust the F-stop and make it narrower. If you do not do so, the custom WB will over expose every time when using a white card. White balance is used to measure the Kelvin temperature that the light source is outputting so that the camera can set itself to that specific reading.

Aug 29, 2005 | Fuji FinePix S3 Pro Digital Camera

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