Is a hood really necessary?

Started 2 months ago | Discussions thread
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Lord metroid
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Is a hood really necessary?
2 months ago

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.

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