The most important factor to get great pictures is the light. Capturing the light on an image sensor is all about digital photography; the best light varies generally at the time on sunrise and the sunset. Clouds, which are fast moving, can change on a second-by-second basis. The best was to learn about the effects of the light, is to take photos of a topic to different times and see what they look like.
The great advantage of digital photography is that you can easily take pictures with no costs and compare these images on the LCD or in the computer. Great lights are not constant. Often you must be patient and wait for these perfect moments to capture the perfect photo. Sometimes you have to return to an interesting subject, because the light changes
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