When is it beneficial NOT to use a...

...A lens hood? I know the good points - reduced flare & glare, protection from hitting the front element directly, but is there any situation when is better not to use one? Apart from the obvious of course, as in when the size of it/it being there is an issue, and storing the lens.

Only thing I can think of is when you're using the built-in flash, when the hood can sometimes cast shadows. But I'd rather attach a proper flash than remove the hood.

Hmm yea that's one. I ask this question out of curiosity because I think it's become second nature for me to always attach my lens hoods and carry them around.

Gets in the way of quick lens changes.

When using a circular polarizer...

When using square Grad NDs...

At sporting events, such as football ('soccer'), you rarely see lens hoods on long white teles. I'm assuming it's a courtesy/cramped space thing.

Pandya wrote in post #7824141
At sporting events, such as football ('soccer'), you rarely see lens hoods on long white teles. I'm assuming it's a courtesy/cramped space thing.

Same with photo pits near the dugouts at baseball games. Especially playoff games where there is far more national and international press than during the dog days of the regular season.

yeah the hood is a pain if your using a clp

When using a lens with a very close focusing ability, the hood can cast shadows on or even touch the subject.

When your camerabag is too small.

Just for balance here - have a hood on at all times. Yes, when using filters, flash and when you are too close to a lot of other long lenses are exceptions. But, hoods are great protection in many ways. Use them.

When trying to get close to a bug.

When you don't have a center-pinch lens cap.

Such a pain in the ass

GetOnMyLevel wrote in post #7824984
When you don't have a center-pinch lens cap.

Such a pain in the ass

Big 2nd.
I changed all my Canon caps to the fake center pinch ebay canon caps