AVS Forum banner
1 - 7 of 7 Posts

·
Registered
Joined
·
7,040 Posts
Discussion Starter · #1 ·
The AVS709 brightness pattern shows (3) for my setting. I also checked it with the Sound & Vision(standard DVD) cal. disc's brightness pattern and it shows (-8). Should I assume the AVS pattern is more accurate because it's meant for HD? And the S&V disc is less accurate because it's for standard DVD? I'm wondering which setting to go with. Thanks.
 

·
Registered
Joined
·
6,226 Posts
Part of the difference comes from the APL (Average Picture Level) that each pattern has. The S&V pattern is half black, half gray, which increases its APL. The AVS disc's pattern is much darker overall. Many sets unfortunately don't hold their black levels well when the APL changes, so the brightness settings will be different with each pattern. The disc patterns may also be mastered with different target IRE or voltage levels at which black is triggered in the display. If one is mastered so black is at 0 IRE, and the other at 7 IRE (including the NTSC "pedestal" voltage), they will require different brightness settings.
 

·
Registered
Joined
·
7,040 Posts
Discussion Starter · #3 ·
Thanks, Rolls-Royce, but it doesn't answer my question. Which setting do I go with? What do you recommend?
 

·
Registered
Joined
·
5,858 Posts

Quote:
Originally Posted by Jim McC /forum/post/18279344


Thanks, Rolls-Royce, but it doesn't answer my question. Which setting do I go with? What do you recommend?

That's a difference of about 11 clicks, I'd prob go with the HD pattern if you watch mostly Blu-rays and DVD pattern if you watch mostly SD. 11 clicks should make a huge difference though maybe go with which one your eyes prefer. You could also try the Sony Blu-ray's hidden calibration pattern for a 3rd source to confirm the setting.
 

·
Registered
Joined
·
7,040 Posts
Discussion Starter · #5 ·

Quote:
Originally Posted by jkcheng122 /forum/post/18288438


That's a difference of about 11 clicks, I'd prob go with the HD pattern if you watch mostly Blu-rays and DVD pattern if you watch mostly SD. 11 clicks should make a huge difference though maybe go with which one your eyes prefer. You could also try the Sony Blu-ray's hidden calibration pattern for a 3rd source to confirm the setting.

I'm not familiar with the Sony "hidden" patterns. Which Blu-rays have them, and how do you access them? Thanks.
 

·
Registered
Joined
·
5,858 Posts

Quote:
Originally Posted by Jim McC /forum/post/18289676


I'm not familiar with the Sony "hidden" patterns. Which Blu-rays have them, and how do you access them? Thanks.

I believe all Sony released movies should have them. I used to use the original Casino Royale (not the new collector's edition release). I will have to look up the key sequence again, but I believe you need to spell out S-O-N-Y with the keypad at the main menu which would be 7-6-6-9-Enter.


Try Googling "Sony blu-ray hidden calibration", you should find instructions on its usage as well.
 
1 - 7 of 7 Posts
Top