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In this Photography tutorial you will learn how to calibrate your camera for the best exposures part 1/3.
Tags:How to Calibrate your Camera part 1/3,calibrate your camera,camera exposure,creating images,nobsphotosuccess,photography tips,photography tutorials,successful photography
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So, let’s just move on a little bit more. Here is James with his new camera. He got his new Canon camera and we decided that let’s go test it out. And we’re going to little more elaborate here, you can see off over here the RGB color picker information of the great card is 86-87-86 which means it’s got a pretty good white balance but that’s not what were talking about. Were talking about doing a camera calibration and if you know the gray, not the gray scale but the color tones in digital photography starts at zero and ends up at 255, so 50% of that is what 126 point something or 125, around there.
So, this is another way to tell whether or not your camera is exposing properly. That should be around 126 or so. So, here’s the histogram of the whole image. And here is the color picker image telling that’s it’s underexposed and his camera starts at a 100 and so our first test is at a 100 and here is the great card reading and you can tell right there the levels are off even more so than my D1XY.
So, we carried on. We did another reading at 80 ISO and you can tell the RGB is going up a little bit more, shot up by about 20 points. And if you look at the histogram, great card you could see the information is moving closer to center. That’s where we want to go, we’re shooting for center because it’s a 50% great card so we shoot another one at ISO 64 and you can tell that the RGB again right at 110-1113 and that means that we’re getting closer to the target which is about 125 or 126.
And we look at the levels of the great card, the histogram. There it is very, very close to the middle. We aren’t there quite yet so we did another one at 50 ISO and you can tell by the RGD 117-118-118 were getting very, very close. And you can tell by the levels of histogram of just a great card area that it’s very close to the middle so what this tells James is his camera which is designed to go no lower than 100. When you’re at a 100, it’s actually optimized if you shoot it at 50. It’s actually under exposing if you shoot it on a hundred.
So, knowing this information, you can go into ay situation and adjust exposure accordingly because it tells you how your camera is going to react and how it’s going to behave.
Now, to optimize this whole effect, you really should do one of this for every lens because I have found that different lenses react differently but I’ve done it for my main work course lenses and it really gives you a lot better control over your exposure so that’s camera calibration that it sometimes gets a little bit confusing but try and figure it out, it’s really important to learn your equipment and to know how it’s working for you.