Originally Posted by eric3316
So how does the cell light effect ansi contrast and your contrast settings in general? By lowering the cell light doesn't is lower everything equally so the difference between blacks and whites should still be the same distance just at a lower brightness level or is it just lwowering the peak brightness but doesn't the contrast setting pretty much already do that?
On a Pansonic there is no cell light so what I am trying to figure out is what exactly is happening here with the cell light then the other settings. On a Panasonic plasma you would set the contrast at 60 and still get an unbelievable contrast ration. On the Samsung you set your contrast to 95, don't touch it but adjust the cell light. If there was no cell light setting, would you just lower the contrast for night viewing which leads to my question of what is the difference.
And like you, I like a dimmer picture in a dark room. On my projector the highest contrast level is 50 but for my viewing I need to lower it to around 30-35 to look like what I would call an acceptable dark room picture.
Don't movies theaters target an ftl of around 15-20?
cell light doesn't lower MLL, only peak whites.
my projector right now is set up for 7-8ftl. with a big screen, less light is still very pleasing, especially in a 'movie theater' like atmosphere. I believe they target about 14-16ftl as a 'standard'. I honestly find 14ftl with my projector 'nasty' looking. way too bright.
lowering the contrast is the 'normal' way to reduce peak whites on a plasma, but if you go much lower than 95 on a Samsung, it throws off the 10pt controls to a point where it's difficult to calibrate. I did one with contrast at 90, cell 20, eco off, and got around 32ftl, but it took forever to get good greyscale. pt 9 was actually controlling 100% white, pt 8 was closer to 90%, pt 7 close to 80%, but pt 4 was basically right in the middle of 40 and 50% and trying to get the 'top half' and 'bottom half' to both look good was very difficult. I probably ran 100 sweeps before I was satisfied with it.
so it's become my preference to use cell light, or eco(but eco only gives you one good dimming level, low).
still, none of these things ever improved my MLL's. the only thing I've done that lowered blacks was the panel tweak. before the tweak I was 'averaging' about 0.011cd/m2 with a 'best' reading of .009cd/m2. after the tweak I was getting averages of .007cd/m2 and a best reading of 0.005cd/m2. it also greatly reduced the level the blacks 'floated' to. pre-tweak was around .070cd/m2, post-tweak is around .033cd/m2. my ansi contrast pre-tweak(after calibration) was around 3500:1, now it's 7800:1. on/off contrast changed from around 10,000:1 to just over 15,000:1 as well.
now that I have the darker blacks, i'm thinking I can get away with a 30ftl calibration again, and won't have to worry about the blacks starting to look 'greyish' with mid-apl content. pre-tweak, my 30ftl calibrations had on/off cr's around 7500-8000:1 and ansi contrast barely above 3000:1.
I think if I can maintain about a 10,000:1 on/off and 5000:1 ansi, i'll be loving how 'contrasty' the picture looks, and the 30ftl peak brightness will be nicer on my eyes than the 36ftl I currently have.
but in all honesty, i'm starting to get pretty tired of all this calibrating, especially when I watch movies on the projector anyway. so i'm not sure when i'll get around to doing this, I may just turn the cell light down a couple ticks and call it good enough for now.