In this exercise I have taken a number of photographs from the same position in my garden to show how the movement of the sun across the sky affects the scene. I happened to choose one of the longest days of the year for this so it was a long day - literally! Additionally, i missed a couple of hours in the middle of the day which is apparent between images 8 and 9
The camera if facing almost due south, so at this time of the year the sun is rising behind and to the left of the camera; setting behind and to the right. Consequently sunlight first appears shining in from the left and after a general lightening it illuminates the upper left of the house and the fence on the right. the face of the house is then illuminated furtherbefore the sun moves behind the house putting the face of the house in shade whilst lighting up a larger section of the garden on the right. It then moves around and brightens up the passageway at the side of the house, which until image 9 was in shadow. Trees then start to block the sunlight as the sun passes across the far side of the house. As the sun comes back around it again illuminates the face of the house, this time from the right of course. The light then gradually dims. Exposure was done automatically, which probably wasn't the best idea for this exercise. It might have been wiser to manually adjust the exposure so that the sunlight was always at the same exposure level. Or I could perhaps have manually adjusted the images to enhance the effect.
Natural light, especially direct sunlight - and consequently the shadows cast by it - is certainly a very important concern for photographers, particularly landscape and architectural photographers. But it may also be of concern to portrait and wedding photographers who may want to plan ahead and know at what angle and direction the sun might be shining at a certain time of day, at a certain time of year.