Originally Posted by Skep1
I wish there was some way to disable auto-dimming on standard. I had the day off today and spent the better part of it fooling with settings. I had it looking great, but now that the sun has gone down, the picture does not look the same. Is there any way to get movie to be as bright as standard is during daytime? Anyway to disable the auto-dim feature all together?
You can't disable it on Standard, but you CAN calibrate Movie mode to look the same as Standard and just use that instead.
I assume when you say that movie mode isn't as "bright" as standard that you are referring to the differences in contrast.
Standard has a higher default white point (contrast) setting than movie mode. Viewing in Standard mode and setting Contrast to 100 is about the same as viewing in movie mode and having the contrast at 106! If you want to raise Movie mode contrast above the 100 limit, you need to simultaneously turn up the RGB gains, which has the same effect as raising the white point. If you set both sets to the same contrast setting, then go into movie mode's white balance and turn up each of the RGB gains up by 14 points, you will have equivalent contrast between movie and standard modes.
I have my movie and standard modes calibrated to look identical (see my sig).
Originally Posted by absoluteczech
hey guys i just posted this in the calibration forum but i figued id ask here since you guys have the same tv
When I enable super white my contrast gets all weird like below. Same goes for the disney wow cd, all the stars are visible even at 100% contrast. In order to get reference white or pure white i have to raise my brightness 10-15+ points so that i dont see any bars after 235 which then washes out black.
However, if i leave super white off it just clips it exactly where it needs to be and i adjust my brightness & contrast a few clicks (which seems like the right setting). Is the tv smart enough and just knows to clip everything after reference white & black and to know there shouldnt be anymore information? When super whites off if i just raise my brightness or contrast to the max the lines (hd 709) or stars (wow cd) never even show show up.
So should i leave super white on or off? I did also notice super white makes whites more "white" but when off, white becomes more "grey"
Super white enables the PS3 to pass whiter than white information (above 235). Disabling it makes the PS3 hard clip any information above 235. This is why when you have super white off you can raise your brightness/contrast controls and still never see anything above 235. The PS3 clips off anything above 235 before your TV ever receives the signal.
Generally it's recommend to show that information if you can (Super White ON). You can't tell if your setting your contrast/white point correctly if the information is always clipped no matter what you set the control to.
With super white ON, you don't HAVE to clip everything at 235, but if you want to you can do what I said above and raise the RGB gains to raise the contrast above the 100 limit (I assume your doing this on movie mode, as Standard can already clip near 235 I think).
I suggest reading the AVS HD 709 "patterns manual" for more information about how to use that pattern and where to clip/set the white point.
By the way, hard clipping at 235 does NOT make your whites whiter. You can actually gets whiter whites by showing information above 235.
Here is an animated gifs showing the difference between hard clipping at 235 and showing whiter than white information. No settings were changed on the TV and the camera was in manual mode so it didn't compensate for the image differences. The only thing changed
was whether the source output whiter than white or hard clipped at 235.
(Open them in a new window to see better....)
You can see that everything under 235 looks identical, but pay attention to what happens above 235. The hard clipped signal stays a constant shade of very light gray (235 will be your whitest signal), while the WTW signal keeps getting brighter and whiter as it continues to show the brighter signals up to 255.
You can see the bars stand out more on the whiter than white signal. This is because their white backgrounds become whiter (because they're reaching their 255 potential and not being limited to light grey 235 backgrounds). So the bars have more of a contrast between them and the 255 background, which is why you see them more clearly. On the 235 clipped signal, the background itself is only 235 which is only light grey, so the bars have less contrast between them and the background and blend in more. All of the actual bars (below 235 at least) are identical on both images, it just that background is noticeably whiter on the WTW signal so they stand out more.
It may look like the WTW signal has darker grey bars, but it's just the whiter background that's fooling your eyes into thinking the bars look darker. If you zoom in and ignore the white background, the shades of grey on the bars are the exact same shade.
Here are more still images of showing WTW and hard clipping, if you want to compare those as well: