Quote:
Originally Posted by bathes2051 
I've been experimenting with the VW95ES and the Spears&Munsils BD on an Oppo BDP-95 player, and here's what I've found:

I've been experimenting with the VW95ES and the Spears&Munsils BD on an Oppo BDP-95 player, and here's what I've found:
- YCbCr 4:2:2 fails all chroma tests, as well as the clipping test
- RGB video level passes the chroma tests, but fails the clipping test: the smallest square cannot be seen, regardless of brightness/contrast settings (I didn't try calibrating for RGB PC levels, and didn't test this mode)
- YCbCr 4:4:4 passes these tests, and therefore seems to be the best color space for this projector
- I couldn't see any difference between the Deep Color modes on this disc, I need to try Ratatouille.
Interesting findings. I feed my VW95 from my Radiance. According to Lumagen, they recommend outputting 4:2:2 because internally that is what the Lumagen processes things as. I do not recall if 4:4:4 out of the Radiance is even an option. If so, I don't see how it makes a difference whether the Radiance converts to 4:4:4 or the VW95 converts it.
Its even possible I suppose that the VW95 internally down converts from 4:4:4 to something else. In which case I would be up converting from 4:2:2 to 4:4:4 for no reason out of the Radiance, just to have the VW95 then down convert it from 4:4:4 to something else.
The bigger question on my mind is how any of this matters with real world material. For instance you mention that the VW95 fails those test patterns when fed 4:2:2. What type of real world materials / situation do those test patterns simulate? What would be the expected negative impact on a real picture? I've had the VW95 for 6 months now feeding it 4:2:2 with all types of sources (PS3, XBOX, Comcast, Blu-ray) and never have noticed any issues with the color space or otherwise...?
Can someone explain why this is relevant? Maybe it only will be with special sources which I am not using yet.






















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