Originally Posted by pieandchips
^ Yeah it's bonkers...lol.
If you imagine that I changed the height of the bar slightly, then tried to make the settings comply, the 10p white balance (from 1 - 10) changes with scale. That's why there are now quite a lot of negative values now mid to low range.
-Whether this is the 'correct' and justified way to go about things I am not qualified to answer but it got me good results
You seem to be whipping out these calibrations in a matter of minutes. For someone at your level, it should take at least three hours per. In fact, the pros and those of us that do it for free take a minimum of about two hours and that's with many years experience. Here is a very simple explanation of how to approach it:
1. For the F8500
, reset all the controls in the Movie mode including the white balance and 10 point. Use the Warm2 color temperature. Turn off all the junk setting. Put Contrast at no higher than 93 to 95. Set the Gamma control to zero. Adjust Cell to give a pleasing picture under your normal viewing conditions. Finally, set the Brightness correctly -- 16 black and 17 barely flashing on the AVSHD disk.
2. Adjust the offsets and gains to get the best possible grayscale tracking. On this TV, leave the green controls at 25 and work on with the red and blue. If it is absolutely necessary to use the green gain, only reduce it and compensate by increasing the red and/or blue if needed.
3. Readjust the Brightness control.
4. Use the 10 point controls to flatten out the grayscale.
5. Readjust the Brightness control.
6. Readjust the Gamma control to give you the desired gamma value. Increasing the Gamma control will reduce the actual gamma value. [[ Increasing the Gamma contol by one click, reduces the actual gamma by about 0.1. Decreasing by one, increases by about 0.1. ]]
7. Readjust the Brightness control.
8. Now use the 10 point controls to flatten out the gamma curve. Use the green contol for the interval that needs correction and then move the red and blue controls in that interval by exactly the same amount and in the same direction. Increasing the green will reduce the gamma in that interval. Reducing it will increase the gamma. [[ Try not to change any 10 point control by more than +/-4 max. ]]
9. Go to 3 until everything is where you want it. Now you should have a perfect black and white grayscale which you can see by viewing a B/W movie delivered from a good source.
10. Now tackle the colors. That's another discussion.
If you want to reduce the Contrast to be somewhere below 90, be aware that the 10 point controls will not line up with the intervals and you'll have to determine how they behave exactly. For this case, the higher end 10 point controls will have less and less affect as the Contrast control is reduced.
If you have to reduce the Cell to a point where the ABL threshold is lowered and becomes a problem, you will have to compromise by increasing it and lowering Contrast to compensate. Of course, then you'll run into the problem of the 10 point controls not lining up.
Calibration takes time and dedication to get it right. Have fun.
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