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Auto-Dimming/CE Dimming
Posted: Sun Jul 29, 2012 2:57 pm
by Nitra
Has anyone managed to figure out how to disable this on the ES series yet?
Re: Auto-Dimming/CE Dimming
Posted: Sat Sep 01, 2012 3:55 pm
by erdem_ua
You can try to change source name to "PC" for HDMI inputs...
Unfortunately, this doesn't apply to TV source
Re: Auto-Dimming/CE Dimming
Posted: Sun Sep 09, 2012 6:55 pm
by prsut
Use Film mode...
Re: Auto-Dimming/CE Dimming
Posted: Fri Oct 26, 2012 5:18 pm
by djstevie
I've got the same model. Did you notice if there were any options to disable auto dimming? Im suffering from the famous auto dimming issue and its driving me nuts. Did the cinema smooth option make any difference in 24p mode?
Re: Auto-Dimming/CE Dimming
Posted: Fri Oct 26, 2012 5:45 pm
by prsut
check my post
here
prsut wrote:Hello all,
lot of us are out of color from AutoDimming ( CE Dimming) feature implemented in 2012 ES series of Samsung Smart TV. On german hififorum I found interesting information, how CE dimming works...
author is Dide? : (google translate)
------------------
"The automatic dimming takes effect if the average brightness value of the current image (or scene) is smaller than a certain limit. By raising the brightness (at the very beginning of the processing chain is) will ensure that this limit is never reached. And the very end of the processing chain standing white balance makes the raised brightness then reverses. So this is a high stability a "work-around".
-----------------
I tried it and I can can confirm IT WORKS:
How is it in real life :
My former settings (STANDARD mode)
backlight : 11
contrast : 74
brightness :
45
sharpness:0
color:34
...
...
White balance (advanced settings)
R-G-B offset : 25-25-25
R-G-B gain : 25-25-25
Using test patterns from calibration forum, namely level blacks 0 to 4%, and two day of comparing and testing with real videos etc, I have found, switching CE Dimming off starts at brightness 50, and each +/- 1 step makes big difference.
Raised level of black (brightness) can be compensated by R-G-B offset.
below are my new settings, CE Dimming is almost switched off - not noticeable. Clouding is not visible (night test WO ambient light, black remains deep black), picture color tone seems to be OK :
backlight : 11
contrast : 73
brightness :
53
sharpness:0
color:34
White balance (advanced settings)
R-G-B offset : 12-12-12
R-G-B gain : 25-25-25
gamma:0
Try it, it should work on other models from ES6xxx series, I believe on whole ES series.
Waiting for your comments, and, sorry for my english - not my natural language,,
Re: Auto-Dimming/CE Dimming
Posted: Fri Oct 26, 2012 5:55 pm
by glewarne
djstevie wrote:glewarne wrote:Registered here to report my sucess on this!
I have a UK PS51E530 which does not have an ethernet support, or WiFi networking enabled
I've got the same model. Did you notice if there were any options to disable auto dimming? Im suffering from the famous auto dimming issue and its driving me nuts. Did the cinema smooth option make any difference in 24p mode?
Well, apart from disabling ECO sensor support, i didnt see anything that jumped out regarding the brightness limiter. but i think its hardwired and cannot be changed.
As for CinemaSmooth, can say yet since i only fiddles very quickly and never got the chance to play a bluray before I went to work.
Ill be experimenting tonight when I get home
Re: Auto-Dimming/CE Dimming
Posted: Fri Oct 26, 2012 7:02 pm
by djstevie
Gutted. The brightness limiter is set too aggressive on this tv, for me anyway. Please keep me informed of your progress.
Re: Auto-Dimming/CE Dimming
Posted: Fri Oct 26, 2012 9:41 pm
by glewarne
djstevie wrote:Gutted. The brightness limiter is set too aggressive on this tv, for me anyway. Please keep me informed of your progress.
yes i agree about the ABL, however on my set its only realy apparent when watching the built in freeview, everything else (all via PS3) seems substantially better
Re: Auto-Dimming/CE Dimming
Posted: Sat Oct 27, 2012 4:27 pm
by djstevie
Sky tv is murder for it, does it all the time. Havent had it on a 24p Bluray but have noticed it on Xbox 360 sometimes although is quite rare. Wish there was a way to turn it off as its a major bugbear of mines. Spoils the tv for me as otherwise the picture quality is excellent.
Prsut i did try those settings you posted but it didnt make any difference at all im afraid. With those settings it was far too dark on my set and colours looked washed out. Also didnt stop the dimming/brightening.
On my set i calibrated with AV Disc and the optimum contract ratio for me is 88 and brightness at 46. Having contrast at 73 and cell light at 11 is too dim im afraid but thanks anyway for the suggestion.
*EDIT* i think that the dimming you are talking about is different from the issue im having. As yours is a LED and mines is a Plasma it would appear that my issue is to do with the Automatic Brightness Limiter being overly aggressive. Sorry for the confusion.
Re: Auto-Dimming/CE Dimming
Posted: Sat Oct 27, 2012 11:34 pm
by glewarne
i have been tweaking my Tvs voltages a bit now, have got a better black level (lowered VScan) and i was able to slightly reduce the overall brightness by reducing Va to the minimum
the ABL seems much less dramatic now, without changing any settings