Sometimes artists will grab images from different scenes and use them to create a single painting. That's one way of creating a composition, but if one or more of those images is shown under a
different light source, a problem can crop up that can cause contradictions.
Let's do an experiment. Look as this photo. Do you see discrepancies?
Notice that the cast shadow from the orange is from one light source while the cast shadow from the candlestick is from another.
Also, the light on the orange is more dispersed than the light on the candlestick. Notice also that the book shows no cast shadow at all.
Under the same light source cast upon the candlestick, the orange would appear like the one on the left below. So that you can see the difference, I
have placed it beside one shown in the photo.
Here are the two photos from which I hashed the first one above. Now you can compare all the differences caused by these two sources of light on the same
images.
Where an image is located in relation to the light, its relationship to other images, the artist's vantage point, the kind, location and
direction of the light source--all these influence how you perceive images and their lights and their shadows.
Choose a piece of fruit or a vegetable.
- Place it underneath a lamp light. Take a closeup photo of it.
- Then place it in a window sill. Take another closeup photo.
- Then place it somewhere outside, and take a third closeup photo.
- Then do a color study from each photo, noticing the differences in colors of areas in light and in shadow.
Enjoy an enlightening weekend!
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