Originally Posted by CP850-CLED
It's not really a haze used as an analogy, trying to say it is lossy, it looks like microwaxiness (my term), other barco 6p and 3p laser owners just say that the DNR is on at all times and cannot be removed, 3 separate people have identified it. Otherwise it is a phenomenal tonemapping unit and a very reliable way to run an a/v system. Since sxrd and lcos higher frequencies MTF are less crispy than dlp it might not show, but I definitely saw it on the Thor in 2015 a waxiness like 3%, and a lot lesser recently like 1% on the 4k series 4, but then there are the other 2 videophiles with Barco 6p lasers, it can be seen by bypassing the unit with an oppo. They told me it was the chip's limitation.
Doing a true apples-to-apples comparison for content between directly out of an Oppo 203 and through the Radiance Pro would require the source and output from the Pro set to 3840x2160 at 23.98 Hertz, 4:2:2, with the Pro at default. In this case scaling should be off (you can check on "Info Pg 3" - press OK three times). In this case , even for a HDR content, DTM would be off, with the Pro outputting HDR (assuming a HDR source).
The Pro does not try to bypass blocks of logic when at default but the blocks are effectively making no changes to the data, except there is a conversion from 4:2:2 to RGB at the beginning of the calibration pipeline, and then back to 4:2:2 at the end of the calibration pipeline. If you are right at the screen you might see a small difference due to this conversion. However, it is my considered opinion than all judgments of quality must be done at viewing distance (I consider this 1X screen width for 4k). So my question would be if you believe there is a difference in this case.
When comparing, if one cannot see the difference at viewing distance I believe there is no material difference. With a 4k projector, you should not be able to see the Chroma sampling difference at viewing distance, but you would see it close to the screen. I mention this since some (most?) people like to evaluate close to the screen. I believe this is misleading since one does not watch from too close to the screen.
Once the Pro is set to process the image, there must be differences.
If the Pro settings cause it to turn on scaling then there will be some slight "softening" of the image as it must be due to Nyquist sampling requirements. We believe the Pro has the best scaling (and gets the highest score using the Tektronix HDMI tester image scaling analysis for real time scalers that we know of) there is no getting around the math of scaling which requires a filter. I mention this as some will see this as DNR.
I don't want to hijack this thread, so perhaps we can take this offline if you are willing to continue the discussion. You can email me at support AT lumagen.com. We strive to have the absolute best image quality, and I am always interested in feedback.
As a final note, now that we have the Radiance Pro DTM well in hand, we are working on additional pipeline enhancements that might make a small, perhaps discernible, improvement in the image. The front end of the pipeline is currently 10-bits, and we will be increasing this to 12-bits. DTM is already floating point, but we will be increasing the calibration pipeline from its current 12+ bits to higher precision. These enhancements will lower the image noise floor, and have the most chance of being noticeable on DLP given its digital nature.