[Anthony]

Thanks for the info. That's what I've heard about the Spyder's as well -- inconsistent results between units. Last time I checked was over a year ago, so I was just curious if anything had changed.

I'm more of an AV handyman than anything else. A lot of times people have projectors or LCD's they want help mounting and wiring up. I would like to be able to do a cursory brightness/contrast/color/tint setup for them and at least point out any grayscale issues that they might want to address. Right now I've just been using an old Avia with the filters, and while that's good enough -- I want it to be better.

But again, this is a small side business and it's hard to justify tools for $2k when it might take me years to recoup that.

Just to get the thread back on topic: what is the difference between the V3 and Pro? I poked around the Calman site and did not find it.

Thanks again. Great information.