Flourescant lighting and digital camera’s…

ND
Posted By
Nathan_Docwra
Apr 12, 2004
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234
Replies
6
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Closed
Hi, I’m not a photographer, but I work for the biggest regional newspaper in the UK as an Editorial Technician. In a word, our photographers are pants. Most of my time is taken up by colour correcting photographs taken by amateur photographers, although they earn more than me!!!

Fluorescant lighting casts (you know, then greeny-yellow ones or bright orange ones that make the photo’s look so ugly) are a constant bother. It’s taken me a while to find out a half decent way to remove these. I usually sample the cast, invert the colour, and lay it over in ‘color’ mode at about 50% opacity. Then I play with it in curves and selectives to make it (sort of) satisfactory.

This method usually produces, fair results, unless there are people in the shot (which there usually are) and their skintones are near enough impossible to correct. It usually takes me ages to achieve viable results.

I have two questions… Firstly, is there anything I can mention to these bozo’s on how to eliminate these casts in the first place? They’re using quite expensive digital camera’s…

Secondly, are there any better ways of removing these ugly casts? I’m using photoshop 4.0, although, I’m pretty good on CS, but only one machine has it. The photofilter adjustment doesn’t really do that much of a good job on CS.

Come on guys, you’re the experts, any tips?

Cheers

Nathan Docwra

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ND
Nick_Decker
Apr 12, 2004
Nathan, if your photographers are using decent cameras, they should either learn to set the white balance correctly when they shoot or correct it when they process their images (if they’re shooting RAW images).

A tip that might help you in correcting the images: Go into Levels and select the highlight eyedropper (the one on the right). Find an area of the image that should be neutral white and click there with the eyedropper. That may bring things into line. If not, select the midrange eyedropper and try to find a neutral gray area to sample.

Nick
ND
Nathan_Docwra
Apr 12, 2004
Yeah, as a rule, I always use the white, grey and black eyedroppers as the first thing I do. But with these type of photo’s, it it just completley wrecks the image. I can send you an example if you’d like.

When I recieve the pictures to be corrected, they’re already in JPG format. And if I try giving the photographers some advice, they kinda sneer their nose up… Me being only 21, they know best (apparently):(

Any other idea’s? Oh, and thanks for replying so soon 🙂

Nathan Docwra
GH
Gary_Hummell
Apr 12, 2004
Since you are doing a lot of color correcting, consider a book titled: Professional Photoshop by Dan Margulis. He focuses a fair amount of attention on getting color casts and skin tones correct in CMYK as well as other color spaces.

Gary
TG
Thomas_Geist
Apr 14, 2004
Nathan,

tell me what the newspaper’s name is where amateur photogs earn more with their dump than the technician. I’ll be there in a minute ! 😉
DK
dave_k_berkon
Apr 14, 2004
How did they get the job in the 1st place?????..You should only have to fine tweek the images…white balance is the way.or tell them to sort the images out…..Maybe they do not know where to start…In that case….let us know..there will be a cue of us taking their jobs
PC
Philo_Calhoun
Apr 14, 2004
Fluorescant lighting is nearly impossible to correct, in my opinion, even with correct white balance, since the spectrum is so narrow. The technique you mention, suggested also in Katrin Eisman’s book, tends to desaturate some, so you have to boost up saturation with a hue/sat adjustment layer. You can try doing it with curves or channel mixer, but I’ve found it very difficult to do and look like good lighting. It is a lot easier to tell the photographers not to use fluorescent lighting. Almost any other type of lighting is a snap to fix.

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