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-rw-r--r--doc/manual/dcpomatic.xml16
1 files changed, 15 insertions, 1 deletions
diff --git a/doc/manual/dcpomatic.xml b/doc/manual/dcpomatic.xml
index 82e5d6a3f..7ff5d2ea9 100644
--- a/doc/manual/dcpomatic.xml
+++ b/doc/manual/dcpomatic.xml
@@ -928,7 +928,7 @@ and DCP-o-matic will pick up the appropriate frames from each.
<title>Colour conversion</title>
<para>
-The <guilabel>Colour conversion</guilabel> setting specifies what
+The <guilabel>Colour</guilabel> setting specifies what
colour transforms and gamma correction DCP-o-matic will use when
converting the selected content into the XYZ colourspace for the DCP.
</para>
@@ -995,6 +995,20 @@ detail in a separate document <ulink
url="https://dcpomatic.com/manual/colour.pdf">colour.pdf</ulink>.
</para>
+<para>
+The <guilabel>Range</guilabel> should be set to the range of values
+used by your content. If your content specifies its colours using the full
+range of possible values (for example, for 8-bit RGB if black is at 0 and
+white is at 255) specify <guilabel>Full (JPEG, 0-255)</guilabel>. If your
+content uses the limited range (for example, 16 for Y as black and 235 for
+Y as white) you should specify <guilabel>Video (MPEG, 16-235)</guilabel>.
+</para>
+
+<para>
+In most cases DCP-o-matic will guess the correct <guilabel>Range</guilabel>
+setting from your content, so you should not usually need to adjust it.
+</para>
+
</section>
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