Originally Posted by blaken134
Following my ISF calibration of my P50G10, my limited understanding is that a calibrator cannot improve color accuracy in the service menu of this TV, but he was able to bring the overall color mix closer to a proper balance. He was also able to improve the grayscale, I believe.
That's my basic understanding as well. I also had Chad B calibrate my P54G10 about a week and a half ago. He mentioned to me that the G10s tend to push too much blue out of the box, which he measured on my display, and corrected through grayscale adjustment. He did say that he couldn't improve the color accuracy on the G10s though......although it looks accurate to my eyes in 'custom' mode. Although he calibrated the THX setting on my display as well, it still has that yellow/green cast to skin tones that can't be totally eliminated. No problem really though, as I just leave it in custom mode as it looks fantastic.
He also increased the brightness in the service menu. It seemed that when I increased the brightness in the user menu (....before calibration...), the blacks would wash out a little. However, he was able to increase the brightness in the SM without it seeming to affect the deep blacks. The TV is now outputting about 38 ftl, and resides in a fairly dark basement environment.
I do notice an improved picture since he came out. I had done a basic user-level calibration using the Spears and Munsil HD calibration disc, but Chad brought the picture to a higher standard with his work. It's not a night and day difference, but it's definitely better. If I go back and switch the TV to an input or mode that he did not calibrate, the picture looks noticeably weaker than the inputs and modes that he calibrated. The biggest difference to me is the improved skin tones, and shadow detail looks improved as well (....likely due to the increased brightness...).
If I switch the display to the 48Hz refresh rate, I do notice the flicker much more since the calibration though. Before, I could detect it only occasionally on very bright scenes. I now just leave it on 60Hz when playing BDs though, as I don't feel the 24p output is that big of a deal.......I watched DVDs for years doing 3:2 pulldown and I never had a problem with it before 24p was an option.
I do have one question though.........if I was to update the firmware of the TV, would all the service menu adjustments that were made revert back to default settings? I think they probably would, but I'm not sure. I don't have my G10 connected to my home network, so there is no worry now about a firwmare update getting pushed to it automatically, but if I ever do decide to connect it I'd like to know if this would happen.