3d glasses

I recently got some red/blue glasses to try the 3d modes on games with nvidia drivers...now here's the thing I wanna know..the new electronically filtered 3d glasses Nvidia makes (about £100 a pair) are they in colour? or still variation is it like old style red/blue shift thus green everything.

I know it's kinda old now, but does anyone use the 3d vision features on the Nvidia drivers? One of my mates just tried the Red & Cyan glasses (kind of most 3d movies etc) with his new 260 card and said GTA4 was a laugh. Now Obviously this is the old method but whos gonna shell out on the newer...