Plus, green means go on contrary to red which means stop. OK, this is how a blond related joke ends.Why isnt this a "L" Lens?
It has all the bells and whistles of L series, but the ring is green not red, that's all
Canon tried painting a red ring over the green one, but it came out black. They tried painting the red ring next to the green one, but decided people might only buy it at Christmas. So they just stuck with the green ring.
I'd rather not say it complete though