Originally Posted by superkyle
Ok so I took your advise @Googer
and it is still not cooperating with me. My gamma graph is not tracking at all. I must be doing something wrong. I open HCFR and I am using the AVS HD709 dist as my pattern generator. When opening the software I select To use DVD manual and then select my sensor. The next part is the part I am really confused about and may be my issue. It asks for a display tyoe with several options I have tried a few thus far. Im not sure if i should use a refresh display non refresh display or one the CCFL options. I know i am suppose to start with a 2 point grey scale calibration using the 40% and 100% points while turning on dimming for 100% and off for all other measurements but HCFR does not allow you to do this or at least I can not find it. It will only do the 11 point grey scale. I zeroed out all the value and just started completly over. I set the gamma value of the tv to 2.2 as most often I will be viewing in a lit environment. Under preferences I have it set to REC 709 (75%/75%) as i believe you guys said this will deliver the best results. the White is set to D65. My gamma calculation is set to ITU_R BT.1886 in the box for effective i have it set to 0 and a 100% offset. Now when I run the grey scale I basically am getting a decreasing exponetial function. By changing the number under the grey scale you are effectivly changing the the gain correct? so if i am low on the gamma scale i should increase the gain of that color in order to seek the desired gamma right? I have change the values of 50-100% all the way to negative 50 and have not been able to get anything except the decreasing function. Do i have something set wrong? I dont get why it is acting like this. I have spent hours just on the grey scale and have basically restarted. If anyone could give me a little push in the right direction that would be greatly appreciated.
First off superkyle, don't make the same mistake I made, use the GCD disc
, not the AVS709 disc. It will be a lot easier when you wound up getting to color.
BT.1886, 2.22 (basically the default, I like 2.22, be my guess and target 2.4, personal taste, etc.). I have Game Low Latency on, everything ELSE is off. (post calibration FALD goes back on obviously).
Please do this (turn FALD off for the this whole procedure):
1) Insert GCD disc
2) Select 10% Windows -> Grayscale -> 100% White
3) Measure your ftl, bring backlight down to where you feel comfortable - I like 35ftL which turned out to be 19 on the P502ui-B1 out the gate
NOTE: I double checked this using the AVS709 -> 100% White pattern AS WELL AS zoyd's aweomse GCD. 19 is what my iD3 said was 35ftL. I even checked post calibration, it's friggin 19.
4) Go now to Main -> Basic Patterns
5) Black Clip Pattern -> Make sure 16 is black, 17 and up are blinking
6) Got back one menu and go to White Clip Pattern -> Set Contrast to a reasonable value where you can barely see 235 or above blink.
NOTE: You NOT going to believe this, but I actually tried to get S&M disc, AVS709, and GCD all to agree. I was 2/3 (S&M is a strange disc).
7) Perform an initial Grayscale sweep by selecting 10% Windows->Grayscale->10% steps
8) Press the HCFR Grayscale sweep button (the gray bubbles!)
9) Follow directions
10) Go now to 10% Window->Grayscale
11) Go into on your Vizio to the Color Tuner Menu, you are going to now adjust Offset (lowend) and Gain (highend)
12) I do 80/30, some like to do 90/20, doesn't really matter, but 80/30 worked for me just fine.
13) Start Free Measurement (press Play), you are going to first do a 2-pt Grayscale tune up to get the whole sweep in general alignment (you still need to work on luminance and dEs for the full 11-pt later on).
14) On 80% modify Gain's Red and Blue (do not touch green, there is no need to) to get the dE bar <1.0
15) On 30% modify Offset (R,B, and Green if you like) to get dE bar < 1.0
16) Go back to 80%, is it still less than <1.0? No, adjust. Go back to 30%, is it still less than <1.0? No adjust. Rinse, repeat
17) Now you are going to do a full Grayscale calibration, go to Color-Tuner 11pt Whitescale (the menu over)
18) Start at 100%, get the dE down to sub zero by adjusting RGB under 100%.
19) From 90%-5% you want to do TWO things simultaneously:
- Match delta Luminance value first by reducing or increasing RGB to the target value, you have to scroll down in the measurements column to see it. (read the HCFR posts for pics) - this is the Y value, you are matching the Y value with what HCFR calculated as the correct luminance value for the gamma at that point in the grayscale.
- Once you get the delta Luminance value in place, then continue to modify to get the dE under 1.0
20) After you are done doing 90%-5%, perform another grayscale sweep (NOTE: 5% for me was a wash since HCFR didn't offer a luminance value nor wanted it for the sweep, but I did get the dE low
21) How does your gamma curve look now? Should be a lot better. Look at each percentage point, if you are little low or high, more than likely you luminance value is off. Go back to 90%, work your way down, follow step 19 again.
Once your done with all of the above, let me know how you made out. I wrote the above off the top of my head but I believe it will get you very far.
Then on to colors...which you will want the GCD above for 75%/75% saturation/luminance sweeps. Do the above first, then we can talk about colors.
buzz has A LOT of good notes about the color issue and ultimately, I did find red to be the most difficult to get inline (you have to compromise and unless he feels differently, with my i1D3 I could not get 100% saturation right, everything was fairly good, avg dE 2.24 because 100% drove it up).
I need to post my CORRECT numbers which i think look great on my set. I have tested plenty of content now and I'm startled how good it looks compared to factory settings. The only thing about my calibration that has me surprised is the backlight. I had to bring it down to 19 for 35ftLs. I don't know if the P502B1 is just brighter than the P60/70. I think his night time backlight is at 28 and that is insanely bright on the 502B1.
One last, but important thing: WAIT FOR THE TV TO WARM UP. I can't stress this enough. Watch a few YouTube videos or what you have (Btw, I can not get audio to work from the Internet apps to my Onk via ARC, very frustrating).