How Important Is It To Use A Lens Hood?

Many of us look at the photographers when taking pictures the camera is very cool because it comes with a lens hood, they look great with a lens hood. But, How Important is it to use a lens hood? Is just for style? Complementary camera?

I will try to answer it a bit, actually lens hood is used in accordance with the conditions when you take a picture, is associated with light. Lens hood to help reduce the entry of light into the lens (reducing flare), in addition lens hood can help protect the lens from impact and scratches. Use a lens hood with the right, if you use the flash / flash do not attach your lens hood.

Many professional photographers who do not use a lens hood, they know how to put objects and understanding the effects of light on the photo. If a strong light and place flares they use hands to cover the lens as a way to block light. If still confused, you can try to shoot with a lens hood and without the lens hood, see the difference in the picture.