Learn to paint in Acrylic paints - Step by Step
The main problem we seem to have with light is figuring out the quality of the source and how that affects everything else. The reason this is such a problem is because we do not see things as they are; we see what we have been conditioned to see. What colour is a banana? Or grass? Or an asphalt roadway? Conditioning gives us answers of yellow, green, and black, respectfully. In reality, these answers are often wrong.
CFL and traditional fluorescent tubes have a notable green tint. Tungsten bulbs are decidedly yellow, and many LEDs have a blue cast. Street lamps have various colours depending upon whether they use tungsten, mercury or sodium vapor tubes, or other high intensity sources. Go out onto the street late in the evening and check out all the different colours showing up in the various residential windows; that might be an eye opener if you have not really looked from that perspective.
We have a big problem in this regard. Our brains. Knowing the kitchen wall was painted with light tan paint, that is the colour we register regardless of the light illuminating the room. The recipe book we refer to still is printed on white paper, so that is what we see, when it should be registering as yellow or blue-gray. Take some photos with the auto-white colour balance turned off (and no flash!) and you might be surprised to see the real colours of things. Take a picture with the normal lighting, then place a table lamp on the counter and use that for your light source. You can remove the shade to eliminate the colour effects that introduces. Then take a picture using your flash. The camera will show up the differences in light quality that our brains have been conditioned to ignore.
Trying to recondition the brain to see actual colours takes time and a lot of exercise, but pays big dividends at each step along the process.
The two photos were taken with the same camera and lens, from roughly the same place, and with the same colour settings. The only thing different is the time of day - and the consequent changes in light quality. The sky is burned out in the evening shot, but there was no sunset; the colour change was due only to the overall ambient lighting. The view is from our backyard in Raleigh, and by this time next year will probably be filled with other homes.