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Conk
1st of June 2005 (Wed), 23:21
Jump in any time and give me a cyber cuff upside the head for asking this but I can't seem to recall what it is about digital and why reds come out so over saturated. Can anyone shed some technical light on this? :confused: Also I would like to know how to avoide it?
KevC
1st of June 2005 (Wed), 23:47
White balance, possibly? Try using a custom white balance by shooting a sheet of white paper in your lighting conditions...
Big_B
2nd of June 2005 (Thu), 00:10
I had all sorts of problems photographing some red roses I bought for my fiancee. She's always telling me off for not buying her flowers - now I have proof that I have done at least once :lol: .

Anyway, I overcame the saturation problem by very slightly underexposing the photo. It worked a treat
scottbergerphoto
2nd of June 2005 (Thu), 05:51
This became a big issue of discussion when the 1DM2 came out. I can't tell you what causes it, but I can tell you how to avoid it:
1. Shoot Raw
2. Use Adobe RGB
It mostly arises in sRGB, in images that are overexposed.
If you do a search above, you will find a link to other material on it.
sdommin
2nd of June 2005 (Thu), 06:09
Red has always been a tough color to reproduce photographically. If you don't believe me, take a look at some Kodachrome slides. Here's a slide that I recently scanned - taken in 1976...

http://home.att.net/~sdommin/lori3344.jpg

The roses in the background are what we would now call "oversaturated", but we put up with it (and yes, the original slide does look that way).

Also, as in the example above, don't judge any color issues by looking at pictures of flowers. Flowers have ultraviolet and infrared things going on in their colors which are not meant to be captured photographically - flowers are designed to attract insects, who have different "sensors" than we do!
Conk
2nd of June 2005 (Thu), 21:54
This became a big issue of discussion when the 1DM2 came out. I can't tell you what causes it, but I can tell you how to avoid it:
1. Shoot Raw
2. Use Adobe RGB
It mostly arises in sRGB, in images that are overexposed.
If you do a search above, you will find a link to other material on it.

Thank you very much Mr. Berger. I will do just that.