Originally Posted by tinpanalley
Ok, good reminder. I need to look into that for sure. I'll be using CalMan when the time comes. I've done a lot of reading and seen some good videos online and feel really confident now about it. But I hadn't, I admit, thought about the Hz and scanrate with respect to calibrating. I also am still trying to understand the difference in greyscale testing with the windowed and non-windowed slides.
there should be no noticeable difference in scanrate o colorspace,
BUT should be ain't always so.
Especially with Plasma.And you have a Plasma. While the reported issues were with Panasonics and you have a Samsung;
I have read threads about plasmas recording different grayscale values at different hz and personally fought calibrating my TV until getting a PC to feed patterns.
And I discovered that 40-50 stimulus and down to 0 stim showed
a different color temp depending on hz fed the TV.
I also read where some Plasmas had color shifts depending on the colorspace.
All these issues should not happen but did.
since you have a plasma, I just wanted to inform you so you could use the info if needed.
As far as patterns.
do not use fields. They are full screen and will cause the TV to be too bright and the voltage/screen limiter will kick in and skew the readings.Use windows.
windows are anywhere from 1% to maybe 18% at the most of the screen.
which specific size is debatable and often TV brand has an influence on agreed upon size.
Then there is the compromise between full screen and windows, the APL pattern.
APL is a windowed pattern surrounded by a full field of a different brightness.
the window and field is averaged together to get an Average Picture Level.
This APL value is also debated. 20 to30 % is a couple typical values.
so for your model and make, you can see what others found good to use.
some swear by APL at @22 percent others that 10-14 percent windows are the best.
One thing that is true, Plasmas can mess with your head.