AFAIK the Tamron 180mm macro has a filter control ring to rotate your cp when the hood is attached. Pretty neat idea.I'd use it more if I or someone else would figure a way to use the CP with one. Somewhere that's one of the "why didn't I think of that" inventions in the making, although I thought I saw Tokina had something like that once.
All hoods, all the time. When I swap lenses they go face down on the ground.yes - I just bought 2 hoods for the lenses that didn't come with them
I removed the UV filters when I installed the hoods...putting on flame suit - NOW!