Photography is all about light. The same scene with the same composition can look completely boring under one set of lighting conditions and very dramatic under different conditions. Good light makes the difference.
But does that imply there is also such a thing as bad light? I don’t think there is such a thing. The key is to understand what kinds of images to make under the lighting conditions you are presented with when you are photographing.
An overcast sky creates a soft landscape with no shadows.
Understanding the three characteristics of natural light will help you use the light to your advantage and make images with an impact no matter what conditions you have to work with.
The Quality of Light
By quality of light, I am referring to how hard or soft the light is.
Hard light happens during midday when the sun is high in the sky and there are no clouds to filter the light. This kind of light is harsh and bright, but it can also create interesting shadows and contrast.