Back when I first became a Lantern, the green rings weren't able to affect anything yellow. We called it the yellow impurity, since it was - supposedly - due to an impurity in the material of the rings.
Much later, we found out that it was because Parallax had been imprisoned in our power battery. Parallax is a sentient fear entity; there's one of those for each emotion on the spectrum, too. So our inability to affect yellow was because of its influence over that part of the spectrum. Once Parallax was freed from the battery, yellow stopped being a problem.
I did manage to affect something yellow, back when I was a rookie. Once. I never managed it again until after Parallax was out, and that wasn't for lack of trying. But once you know how it works, it's possible to force your way through it. You just have to remember fear, and overcome it.
[ Which might be why Hal never did manage to do it twice, until he knew that. He's pretty bad about recognizing fear instead of ignoring it. ]
Then, the violets. Before the Star Sapphire rings were forged and their corps was formed, there was just one Star Sapphire, and it had this habit of possessing my girlfriends and making them try to dominate and or kill me.
The rings aren't as quite bad as that, from what I've seen, but they can still make their wielders kind of...gung ho about spreading the love. Fatality used to be trying to kill John, and once the Sapphires converted her she forgave him, which we were all pretty sure wasn't going to happen even on a cold day in hell.
And as for the reds: yes, that's their blood. When a red takes a user, it forces all of their own blood out and replaces it with that stuff. It's possible for a Blue Lantern to reverse the process, which is why I'm having a rational conversation with you instead of spewing my guts, but I don't know of any other way to get them back to normal.
no subject
Much later, we found out that it was because Parallax had been imprisoned in our power battery. Parallax is a sentient fear entity; there's one of those for each emotion on the spectrum, too. So our inability to affect yellow was because of its influence over that part of the spectrum. Once Parallax was freed from the battery, yellow stopped being a problem.
I did manage to affect something yellow, back when I was a rookie. Once. I never managed it again until after Parallax was out, and that wasn't for lack of trying. But once you know how it works, it's possible to force your way through it. You just have to remember fear, and overcome it.
[ Which might be why Hal never did manage to do it twice, until he knew that. He's pretty bad about recognizing fear instead of ignoring it. ]
Then, the violets. Before the Star Sapphire rings were forged and their corps was formed, there was just one Star Sapphire, and it had this habit of possessing my girlfriends and making them try to dominate and or kill me.
The rings aren't as quite bad as that, from what I've seen, but they can still make their wielders kind of...gung ho about spreading the love. Fatality used to be trying to kill John, and once the Sapphires converted her she forgave him, which we were all pretty sure wasn't going to happen even on a cold day in hell.
And as for the reds: yes, that's their blood. When a red takes a user, it forces all of their own blood out and replaces it with that stuff. It's possible for a Blue Lantern to reverse the process, which is why I'm having a rational conversation with you instead of spewing my guts, but I don't know of any other way to get them back to normal.