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:
- 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.
Originally Posted by lovingdvd
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.
This post was a while ago, but I figure it would be valuable to share my experiences with this 444/422 question on the Sony. What is comes down to is that I believe the Sony is displaying exactly -and only- the data that is fed to it. So, essentially, it would make sense that the Sony would fail the test pattern choma tests when using 422 output from the player/processor. Since 422 is missing chroma data, the Sony just projects the pixels "as-is" with the missing/reduced chroma resolution and does not try to "artifically restore" the original chroma data. Anyways, I can definitely see more detail and less motion-blur using 444 output to the Sony (from the Radiance) with movies in general - not using any test patterns. I've been doing a technical thread on this over in Lumagen Support you can read, if you wish.
I've come to the opinion that the Sony can be viewed as a true "reference" projector. These are only assumptions, but...
I have read in some past posts that some people do not like the Sony as much because it gives a "video-like" effect to movies sometimes. Much like a 60fps video effect even though the movie is still displayed in 24fps. I have come to the conclusion that the Sony is displaying the image with such accuracy to the source that it may look "too real" to some people. I have seen this effect sometimes and I'm okay with it (because I know what it really represents -- pixel accuracy). This is with Motion Enhance turned off, so there is no artifical motion/realness added to the source signal.
I would assume that the JVC projectors "soften" this affect, and it may be more pleasing to some people. It could also be that the JVC and/or other projectors are doing some processing on the 422 signal to try to "restore" the original chroma data lost in the 422 compression. I'd love to do a comparison with a nice JVC to see how it behaves differently in this sense and also with comparing 422/444. Anybody interested in Central California / Bay Area?Edited by Aaron Inami - 3/19/13 at 12:44pm