Is a hood really necessary?
I never used a hood in my life and I do not see the reason why I would need to carry a hood with me wherever I go. However, I am open to new ideas and to learn how to make better photographs.
So what do one use a lens hood for?
When do one use it and what effect does it have on the photograph?
If someone posted a comparison image showcasing the result with and witout a lens hood, that would be really helpful.