DH bought me a new lens for my camera. The camera shop also sold him a bayonet hood. And a camera bag. All this and we weren't suppose to be buying presents for each other this year as we bought a new TV earlier in December.
Anyway, what is the purpose of the bayonet hood and how do I know when it is needed? I am just assuming that it is for bright sunlight, but really don't know.
Judy, mom to Reba, the Lab, and Jalapeno (Halle), the JRT
I've been told they do help keep out light that might cause flare and also heps protect the front element of the lens from bumps. I never remember to put mine on.
I always keep a hood on my long lenses. It helps prevent flare and also protects the front of your lens.
Try going outside on a sunny day and use your hand as a "visor" above your eyes. See how much better you see? This is the same effect a hood has on a lens.