Originally Posted by LarryInRI
After reading comments about how well behaved the VT60 is when calibrating and reading a short discussion about calibrating-for-pretty-graphs, just for fun I spent some time this weekend getting the best grayscale and gamma curves that I could.
The slight dip in the gamma curve is there by purpose. It helps increase definition in the very dark areas.
Max output is 29 ftL and min level is 0.00145 ftL.
Oh yes, Don't try this without ControlCAL. The Panasonic on screen display interacts with the readings and the OSD's short timeout will drive you crazy.
There is no way I'd be able to get my gray scale quite
this perfect with the controls on the ST60. It would literally be impossible, especially if I was also trying to also get the gamma a certain way. That being said, zoom in a bit more and I bet it won't look quite as perfect, especially on the gamma.
Also... my ftL is much higher... 37 or so on Custom, and around 38 on Cinema mode. Should I be calibrating at a lower max ftL?
Honestly, I'd just buy a ZT60 if I could be 100% guaranteed I'd have near perfect uniformity (which I can tell I don't have on my ST60) and that Panasonic could guarantee they'd give me a replacement within 48 hours if I was at all dissatisfied at any time. I can tell when displaying a purely white or gray screen the uniformity isn't perfect, and I've heard of other uniformity issues with the ZT60.... I just can't bring myself to spend quite as much as the VT60/ZT60 cost unless I can be very sure the uniformity issues weren't throwing things off more than my calibration being slightly off would.
Also, I can tell some fairly major differences between my ST60 in Cinema mode calibrated with a gamma of approx 2.22 vs. Custom mode with bt.1886. Like even in an animated show I can tell a difference in how the wallpaper looked (color wise) between the two modes, even though supposedly they should be calibrated so well the difference shouldn't be noticeable by the human eye.
-- Maybe someone can explain to me why this is the case. Then again, I don't fully understand gamma. My guess is though that Custom mode is the superior mode on an ST60. I can see details popping in Custom mode that I can't see nearly as clearly in Cinema mode. It could also be the difference between the different gamma preset modes, or the panel brightness though. In "Custom" mode I have the gamma preset at 2.6 and panel brightness at "mid", while in Cinema mode I have the gamma preset at 2.2 and the panel brightness at "low". That being said, I can't help but feel like the bt1886 gamma is a little bit too "dim" for a lot of live action stuff.
Originally Posted by zoyd
That's a great start but you are not finished.
Once the edge gamut (100% saturation) is calibrated you should check points inside the gamut to verify display linearity. In HCFR you can do that along each color axis (saturation measures) and at select points using the color checker sequence. There are some displays that will measure perfectly at 100% saturation but have errors for other more important colors (flesh tones, grass, sky, etc.) that you might want touch up.
Maybe this is why I can tell the differences between the two modes with only my eyes so very easily. If I had to guess Custom mode with "panel brightness" set to "mid" is a lot better than "Cinema" on "low" though.Edited by damag0r - 9/17/13 at 9:33pm