I think the projector in question (W2015) has secondary colors because i emailed OPTOMA and got a reply too. The brochure itself says it has a six segment wheel running at 2x but also clearly mentions the rpm as 7200rpm. But the color segments were not mentioned. So I emailed optoma and got a quick reply explaining that it has RYGWBC segments. The brochure also mentions that this PJ steps up the speed to 3x when using pal 50hz mode and also specifies the rpm changes to 10800rpm.
In the email, optoma also commented that you will hardly see rainbows in this PJ and that it would surpass my existing HD70 (which i also own) in image quality.
Given the wheel specs mentioned above, what do you feel will be the rainbow effect on this pj and how will the IQ be, since its a 3200 ANSI lumens and has a CR advertised of 15,000:1. Im buying this as an upgrade to my HD70 since i wanted a brighter image. Otherwise i am satisfied with the HD70 kind of color etc. The HD70 had seven segments running at 4x speed.