Originally Posted by fatherom
Hi fellow owners,
Question about Digital Focus Optimizer. For anyone that has Reality Creation turned on, and has DFO turned on...would you be willing to check a scene for me?
(I also wonder if this, POSSIBLY, could be the cause of the near black artifacts that others have reported)
Now I have a lumagen with DTM, which obviously is another variable, but I've determined that having DFO on during this scene really makes the image look bad. Thor Rangnarok, start playing at 19:00. A bit later, when Loki stands up after landing on the grass, look at the clouds on the top right. Then when Thor approaches Odin, and they show Odin close up, also look at the clouds on the top right. For me, there's tons of banding and blocky artifacts in the clouds (like a weather contour map). If I turn DFO off, the problem completely goes away and the clouds are smooth.
Just curious if others see this and/or can reproduce it. Thanks!
I have just looked at that scene and yes I see exactly the same as you.
Turning off DFO immediately sorts it out.
I then tried setting RC to 0 and then using DFO and although much reduced the effect was still apparent.
So it looks like DFO is running to a fixed algorithm that also suffers more from using RC as you ramp it up, which is understandable as that is how RC works.
Turning RC up without DFO on can give a better effect without the weird artefacts shown by DFO.
As I said DFO will have varying levels of support amongst users depending on personal taste, environment and lens shift/lens quality etc.
It is certainly better to have the choice to use it rather than not at all.
I leave it off these days as having it on, makes me pause movies quite often to see what on earth 'that funny effect was'.
Just turn RC up a little more and you get what to me looks like the same benefit but with none of the per pixel downsides of using it.
Having said that, I do tend to have it switch on with normal broadcast TV, as I have yet to see any downsides with that and it helps sharpen the picture nicely.