Is here anyone with experience of camera physics that could help me with this issue or that knows someone I could contact at a university maybe?. I am trying to find out how regular video camera perceives lights and colors of molten metals in daylight, my understanding being that a regular video camera can't change a color of something in a molten state with silvery color into orange/yellow color just as it should not change the color of a burning flame into a different and wrong color.
The only camera effect I know of is that the brightness levels on a video could be right on the upper maximum threshold for the camera, and going on to exceed it, so that it produces a purple/magenta color.
That very bright objects (such as the Sun, pieces of paper catching the sun, white-hot metal or flames, bright lights, etc), filmed with a CMOS camera, send too many photons onto an area of the sensor. The sensor doesn't handle this well. This causes electrons to overspill onto an adjacent area of the sensor, but usually in the same direction for each bright spot. The electrons cause the voltage on these areas of the sensor to increase, and that causes a problem. The voltage is meant to be 0, so that when light hits it, the sensor can measure the difference between 0 volts and some higher voltage caused by the light hitting it. But now 0 isn't 0 anymore, it's higher. Put simply, the sensor would normally measure the light level by measuring the difference between 0 and, say, 5 (maximum brightness). So black would be 0 and 5 would be white. But now it's measuring between a minimum of 7 (due to electron overflow) and 5 (maximum). So the result is always negative (even bright light would be -2), which the camera treats as 0 (black). Hence, you see a black spot slightly off-centre from the very bright light sources. But why purple? Well, it's simply because the sensor's red, green, and blue detectors have different sensitivities. They tend to be more sensitive to green, because our eyes are more sensitive in green, and we want the image to look right. Conversely, they tend to be less sensitive in red and blue, because our eyes are less sensitive to those colours too. As areas of the sensor start to become overloaded due to the electron overflow, it's the green that get overloaded first, as that's what it's most sensitive to. So these green areas become black (see above), and you're left with just red and blue. If you mix red and blue you get purple/magenta, and this is hence what you see when the sensor starts to get overloaded. Eventually it would become black, but it's not always quite bright enough to do that in every case.