Little tidbit about blowing reds

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TracyF's picture
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Little tidbit about blowing reds

This may seem obvious to some, but it had never occurred to me before, so I thought I'd share in case it's helpful to others.

Last night I was at a photography course (on lighting, pretty disappointing, actually) and they reviewed white balance issues. They suggested comparing auto white balance with custom in their studio, and when I did, I used my little red purse as my subject. And in doing so, I discovered that although the auto looked pretty close to the light in the room, my red channel was blown. When I changed the white balance and re-shot the picture with exactly the same settings, the red channel was perfect.

I usually think if my red channel is blown, I should reduce exposure... which helps, but sometimes results in a slightly darker image than I want. So the idea that white balance would impact it as well was really helpful for getting the results I really want, both in terms of colour and exposure. Although it certainly makes sense when I think it through, it was just a new revelation to me. So now if I see my red channel is blown, I will probably think to check white balance as well as exposure.

Ladybugsteph's picture
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Oh, that dreaded red channel! I was blowing reds all the time. I'm sure I still do, as I still don't really pay attention to the numbers like I should, but I'd like to think that I'm getting better at it Wink

I've been struggling with my WB lately. I'm thinking that I should probably invest in a grey card at least, but those ExpoDiscs look really awesome. I wish I had a money tree....

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Yeah, the ExpoDiscs seem fantastic. I've just been hearing about them recently, and the people who did my course last night use one all the time too. WB is a huge problem for me, especially at home with our awful walls, and I sure would like a good fix.

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I'm thinking of just getting one when I upgrade and just think of it as part of the price of the camera. Wink

EL2
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I had a grey card. But it got annoying because you have to place it in the area where you are shooting. I've read about the expo disc and I think there are 50% of the people in the photography world that really loves it and there are 50% that really hates it. If you were to purchase one they say to get the biggest size that matches your biggest lens so that you can use it for your smaller lens too.

And Stephanie... We have a money tree, they're called husbands lmao - don't tell mine I said that"

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Wonder why they hate it? And I wonder if they're coming from using a grey card or nothing at all. Tbh, I've never even looked at prices of grey cards because they seem like such a pain. But I'd really love to get WB correct in camera. Have you seen the WB lens cap from photo photojojo? I saw that before the expodisc and wanted one. I'm sure the expodisc is better.

And yes, that's definitely what hubbies are for! Wink

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I read that you can make a DIY expodisc by cutting a coffee filter to fit in a UV filter.

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Oh, I'm always blowing the reds....and I have a hard time correcting them in pp. Good to know about the WB.

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"reeveslady" wrote:

I read that you can make a DIY expodisc by cutting a coffee filter to fit in a UV filter.

I got DH to do that for me and it works pretty wel! Thanks so much for the tip!