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<blockquote data-quote="jameson_uk" data-source="post: 967072" data-attributes="member: 11220">This is a mess and things can change where you least expect...&nbsp; You have decoders, renderers and GPU drivers which can report wrong values. Things can also change dependant on source (ITU601 / SD &amp; ITU709 / HD).&nbsp; On my old setup (Nvidia 9400) I had to use 0-255 on Nvidia control panel for SD (to actually get 16-235 output) and then set to 16-235 to output 16-235 on bluray via TMT.This is out of date now but <a href="http://www.upsilonsoftware.com/blog/5-blog/8-getting-consistent-levels.html" target="_blank">http://www.upsilonsoftware.com/blog/5-blog/8-getting-consistent-levels.html</a> is an interesting read (and quite interesting software I want to try as I have a light meter)<a href="http://www.curtpalme.com/forum/viewtopic.php?t=10457" target="_blank">http://www.curtpalme.com/forum/viewtopic.php?t=10457</a> is also well worth a read to explain things (you probably should not be seeing &lt;16 on a 16-235 calibrated display.The key is getting consistent levels.</blockquote>

[QUOTE="jameson_uk, post: 967072, member: 11220"] This is a mess and things can change where you least expect... You have decoders, renderers and GPU drivers which can report wrong values. Things can also change dependant on source (ITU601 / SD & ITU709 / HD). On my old setup (Nvidia 9400) I had to use 0-255 on Nvidia control panel for SD (to actually get 16-235 output) and then set to 16-235 to output 16-235 on bluray via TMT. This is out of date now but [url]http://www.upsilonsoftware.com/blog/5-blog/8-getting-consistent-levels.html[/url] is an interesting read (and quite interesting software I want to try as I have a light meter) [url]http://www.curtpalme.com/forum/viewtopic.php?t=10457[/url] is also well worth a read to explain things (you probably should not be seeing <16 on a 16-235 calibrated display. The key is getting consistent levels. [/QUOTE]

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