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There are never any situations where using a hood will be detrimental to optical performance. Hoods do not block image forming light. They are designed to block stray light from outside the edges of the frame that can, in some situations, cause flare or reduced contrast. A properly sized lens hood will either improve image quality or do nothing. Never the opposite.
Bayonet mounted hoods like the HB-47 can be a royal PITA when you are using a polarizing filter and need to reach inside the hood to rotate the filter. But other than that situation and the increased bulk factor,...Show more →
^^^^ That, and the really special case of taking close up (or even macro) shots (hey, you can use extension tubes!) and using an on-camera flash. The hood might cast a shadow over you close-up subject. That would be the only case when a hood would be blocking useful light, as opposed to stray, detrimental light.