Base characteristics curve
Can someone explain to me the usage of base characteristics curve. I can see the difference between different curves but what is happening when I change the curve?
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The fact is that for all of the base characteristic curves (except perhaps linear response) what you are seeing is not just what comes out of the camera sensor. And you can see from the linear response option that generally speaking you would not use the unadjusted sensor output just as it comes. So what Capture One does is apply some adjustment to it behind the scenes to give you a starting point to adjust from. From your starting point you can go in any direction, so you could for example either increase or decrease contrast, or saturation, or sharpening, etc. It can be interesting to have two variants of an image and start one from say the film standard curve and one from the linear response. You can (usually) end up with similar looking results, but you have to work quite hard to get the linear response one to look the same as the other one.
Other apps do something similar. So in Lightroom, in the Camera Calibration panel, there are various profiles like "Adobe Standard" or "Camera Landscape" etc which each give you a different look to start from. In my limited experience of Lightroom, I would say that generally speaking the starting points you get in Lightroom have less "punch" than those in Capture One. So with the same image, you might for example want to add a bit of contrast in Lightroom, and take a bit off in Capture One, to get to the same outcome. But Lightroom, like Capture One, is doing something to the raw output for you before you get to work.
Personally, I find that I prefer the starting point I get in C1, but I am having to learn sometimes that some sliders like Contrast and Saturation in particular, do go down as well as up. You have to remember that controls like that work relative to the starting curve. So if you were to choose the extra contrast curve in C1, the zero point on the Contrast slider would give you a more contrasty image than if you had chosen the film standard curve. You're moving it up and down from a different starting point.
Ian0 -
[quote="Ian3" wrote:
The fact is that for all of the base characteristic curves (except perhaps linear response) what you are seeing is not just what comes out of the camera sensor. And you can see from the linear response option that generally speaking you would not use the unadjusted sensor output just as it comes. So what Capture One does is apply some adjustment to it behind the scenes to give you a starting point to adjust from. From your starting point you can go in any direction, so you could for example either increase or decrease contrast, or saturation, or sharpening, etc. It can be interesting to have two variants of an image and start one from say the film standard curve and one from the linear response. You can (usually) end up with similar looking results, but you have to work quite hard to get the linear response one to look the same as the other one.
YMMV. I switched from film standard to linear response a few months ago and I find I now get results I like faster. Maybe depends on the camera too, I don't know.0 -
Yes, I'm sure it does depend on the camera.
Ian0
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