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03/02/2006 02:51:56 AM · #1 |
I notice with a few different brands of cameras that the white balance isnt the same. I have a few dfferent cameras that have the white balance setting where you fill the screen with all white and it sets itself. They all dont seem to calibrate the same to the same white i used. So i wonder if its me or if its who ever built the cameras vision of what white is to them? The sony seems to be a bit on the yellow side and fuji seems to be on the blue side. Canon looks the best to me, or to the colors i see.
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03/02/2006 03:03:35 AM · #2 |
I think all the camera set them according to their own programming/processor.
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03/02/2006 03:11:00 AM · #3 |
Originally posted by BowerR64:
I notice with a few different brands of cameras that the white balance isnt the same. |
Different situations/lighting can cause the same camera to have different white balance , especially in Auto mode.
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03/02/2006 03:15:20 AM · #4 |
| White as in white paper isn't consistant either. Try laying two pieces of white paper from different manufacturers on top of one another and you can see the difference. That's why it's best to see white balance with a neutral grey card (one that measures 128,128,128). That way you will eliminate one of your variables from the white balance equation. |
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03/02/2006 03:23:15 AM · #5 |
| heck, I think if 50% of the people sees green as "red", and another 50% sees yellow as "blue" we still wont know it. How do you explain to a person who has, all his life see tree leaves as green (but appear red to his eyes eventho he calls it green) ? |
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03/02/2006 03:55:16 AM · #6 |
Originally posted by Gatorguy:
White as in white paper isn't consistant either. Try laying two pieces of white paper from different manufacturers on top of one another and you can see the difference. That's why it's best to see white balance with a neutral grey card (one that measures 128,128,128). That way you will eliminate one of your variables from the white balance equation. |
I've been round almost every photographic shop in Belgium recently trying to get one of these gray card, with no luck. They all say the same thing. They need a code to order one which kodak say is on the website but none of the shops can find it any more, so no more gray cards. Really strange, every shop gave the same story. |
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03/02/2006 03:58:52 AM · #7 |
Originally posted by bluenova:
Originally posted by Gatorguy:
White as in white paper isn't consistant either. Try laying two pieces of white paper from different manufacturers on top of one another and you can see the difference. That's why it's best to see white balance with a neutral grey card (one that measures 128,128,128). That way you will eliminate one of your variables from the white balance equation. |
I've been round almost every photographic shop in Belgium recently trying to get one of these gray card, with no luck. They all say the same thing. They need a code to order one which kodak say is on the website but none of the shops can find it any more, so no more gray cards. Really strange, every shop gave the same story. |
Ask for an Expodisc.
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03/02/2006 02:04:23 PM · #8 |
Originally posted by Gatorguy:
White as in white paper isn't consistant either. Try laying two pieces of white paper from different manufacturers on top of one another and you can see the difference. That's why it's best to see white balance with a neutral grey card (one that measures 128,128,128). That way you will eliminate one of your variables from the white balance equation. |
A couple of thoughts to expand on this:
Paper has a brighness index on it, and the "whitest" paper has some blue added.
You should buy a grey card (don't print your own unless you have calibrated your printer)
Using something like a calibration target from www.photovisionvideo.com will allow you to set WB, and set black, white and center points in PS. |
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03/02/2006 02:08:17 PM · #9 |
| yeah, some adjustments can be made in PS but custom white balance w/ a card is always best |
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03/02/2006 02:10:17 PM · #10 |
People see color differently. Some people are color blind. Some women have receptors for four colors, rather than the usual three.
Lights are not all the same. Check out //www.topbulb.com/find/cri.asp for a discussion of CRI.
Some lights put out changing colors--they change color over the 60Hz AC cycle (or 50Hz, if you're on 220V). Check out the following picture, note that the lights are on a three phase electrical system. The lights all looked white in the gym, but at a high shutter speed you can see the color change. And when you mix two different colored lights you can have problems (e.g. fluorescent and flash, fluorescent and incandescent, etc)
Message edited by author 2006-03-02 14:12:17. |
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03/02/2006 02:40:00 PM · #11 |
Originally posted by adamweb:
yeah, some adjustments can be made in PS but custom white balance w/ a card is always best |
Shooting in RAW makes life easier :)
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