I have finally finished calibrating my 54S1! I have added the primary and secondary color measurements and also tweaked the grayscale offsets a bit. First, here are my service and user menu settings:
Service menu Warm factory settings: 80/80/80/E1/F3/88
Offsets applied: -2/0/-1/-4/-31/0
Final Warm settings: 7E/80/7F/DD/D4/88
All NR: off
Setup: PS3, AVSHD, HCFR Colorimeter SW, i2 Display LT meter.
- Resulting brightness is about 35 ftL. This seems to be a decent level that suits both day and night time viewing.
- Black level is about 0.014 ftL. I love the deep blacks!
- Grayscale is excellent across 20% to 100% IRE with all deltaE's below 3, many below 2. More on this below. For unknown reason, the red level has risen noticeably since last night. I had to lower RDRV by three ticks from my previously posted offsets to get a similar grayscale performance. Weird.
- I had used Droid's Color value of 39 in my last report. The primary color measurements tells me that it results in too much color saturation on my set. I think this was responsible for some scenes where faces are too red or grass field is too green. So I lowered the value to 28 where I saw the least amount of color errors. Even after this adjustment, primary color errors are substantial because S1's color space is much bigger than the Rec 709 color standard and lacks the Color Management System (CMS) control. This is where I wish I had the correct color space of Kuros, G10/V10's THX mode (are they really fixed?) or Samsung's CMS. I was used to seeing over-saturated colors so my initial reaction after this change was that the colors lacked 'pop'. But the measurement shows this is more accurate. Now that I have watched some BD and TV with this setting, I think I now understand what oversaturation was doing to some scenes of face and nature. If you are seeing red faces, you might try lowering the color a bit. It's interesting to note that I am the only one among S1 cal reports with the Color setting this low. Larry and D-Nice with X1's have theirs similar to mine though. Secondary colors are also impossible to calibrate properly due to lack of CMS. The tint setting is all we have and the value of 5 seems to be the optimum on my set. Again very similar to Larry's!
- I tried to get the grayscale deltaE's all under 1.0 like in Droid's cal report but I don't think that's possible. Droid used CalMan and I used the HCFR software and they seem to employee different methods to compute the deltaE. Droid's RGB plot shows a similar or more amount of flunctuation as mine but CalMan's reported deltaE is about 1/3 of my numbers. I think CalMan is applying some sort of averaging across the three colors while HCFR's number is more or less the worst offender among the three errors. Maybe this is well-known among experts here. Well, the bottom line is that I think the grayscale I have is just about as best it can get with this set. According to the cal procedures I've read, it's considered extremely good if all deltaE's (HCFR version) are below 3.0 which is basically what I got.
- I am attaching four measurements: 1) My post-cal, 2) pre-cal all factory default, 3) with Ruiz's offset and UM, 4) with Droid's offset and UM. All are for Cinema+Warm mode. It shows that Ruiz's setting is an improvement over the default but nowhere near as good as Droid's or mine. Droid's setting gives very good grayscale but primary and secondary color errors are way higher than mine. Of course, this is for *MY* 54S1 and may or may not apply to others units. You probably know where I stand with this issue.
- I commented last week that it may be a good idea to eyeball the grayscale with the 10% step grayscale test screen from AVSHD. I now want to take back that statement. If one tries to make it a uniform color (target is grey, of course) across the scale, I think it's very easy to favor one of the rgb colors by mistake. I think it's almost better if you see a very slight color variation from bar to bar. That means each of the three rgb levels are very close to each other rather than one dominating the other two. My post-cal grayscale picture shows this trend. Something to think about if you are trying to calibrate the grayscale with your eyes.
Finally, I want to thank all other posters here who helped me understand things better, especially Larry who also pointed out the i2 meter and opened up the possibility of DIY calibration for me. I am glad I went thru the process. I am one of those people who need to get to the bottom of things and I can finally sit back and just enjoy the TV!
But if you have any tips of improving the measurements further, let me know!
mmoh00.pdf 423.2314453125k . file
HCFR data files.zip 4.474609375k . file
droid.pdf 423.25390625k . file
ruiz.pdf 432.6162109375k . file
Default.pdf 430.3935546875k . file