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Subject: Re: [AE] UHD on Mac
From: Jim Curtis <jpcurtis@me.com>
In-reply-to: <list-5473470@media-motion.tv>
Date: Thu, 15 May 2014 09:44:51 -0500
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References: <list-5473470@media-motion.tv>
To: After Effects Mail List <AE-List@media-motion.tv>

Sorry.  I made at least two errors on my post.  "HDMI 1.2" should have =
been "HDMI 1.3"

And my "60Hz" actually should have just been "progressive." =20

You are correct, Jarle, that it will display different frame rates, as =
long as they're progressive.

When I bought it, I was doing interlaced TV, and the converter was =
needed to see my work on the display.

This is from the "Using w ProVideoApplications" PDF from HP.

"
However, due to the architecture of the =E2=80=9Cfront end=E2=80=9D =
electronics used in the HP DreamColor LP2480zx,
the color gamut remapping circuitry will be bypassed if the following =
conditions exist:
=EF=82=B7 The monitor is fed a YCBCR (digital) or YPBPR (analog) signal. =
These signals must be color-space
converted to RGB.
=EF=82=B7 The monitor is fed an interlaced or 1080-line progressive =
segmented frame (PsF) formatted signal
(for example, 1080PsF/23.976). These signals must be converted to true =
progressive signals via a
converter box.
Using the HP DreamColor LP2480zx for professional video applications 3
=EF=82=B7 The monitor is fed an analog signal via the composite, =
component or S-Video inputs. These signals
must be converted to an RGB progressive signal and input via one of the =
digital inputs, such as
HDMI.
When a video source that meets one or more of the above criteria is sent =
directly to the LP2480zx, a
warning will be displayed onscreen and the color space presets will be =
disabled in the On Screen
Display (OSD) menu indicating that they cannot be selected. In this =
mode, the monitor is operating in
its =E2=80=9Cnative=E2=80=9D mode, at the full panel gamut and with no =
tone response, gamma, or other corrections
applied. The resulting image will typically be highly saturated and will =
not match the expected levels.
"

On May 14, 2014, at 5:37 PM, Jarle Leirpoll <leirpoll@online.no> wrote:

> Well, I have two different DreamColor monitors, and they both do 10
> bits-per-channel colors at several frame rates via DisplayPort.
> Then again, I'm on PC, and my world may be very different from yours. =
But
> the DreamColor monitors sure can do 30-bit (10 per channel) color at
> different frame rates.
>=20
> If you feed 10-bit color to the DreamColor, and it's calibrated to =
Rec709 -
> then Rec709 is what you see. I do this through DisplayPort.=20
> On a Mac, or through HDMI, I'm not sure how that works.=20
>=20
> /jarle
>=20
> From: Jim Curtis <jpcurtis@me.com>
> I have the HP DreamColor display, and it only goes into "Deep Color" =3D=

> mode when fed a 60Hz signal thru DisplayPort or HDMI 1.2.  The way you =
=3D
> get it to play other frame rates (like 23.976) is to put a converter, =
=3D
> like the AJA HDP2 between your video card's SDI out and the HDMI to =3D
> Displayport cable=3D85 and wondering what the analogous options are =
for =3D
> this display.
>=20
> I also have a question about how Adobe Ae and Pr handle color spaces =3D=

> when using the computer's HDMI outputs without a converter box.  If =
it's =3D
> Full RGB, that's not very useful for broadcast work, right?
>=20
>=20
> +---End of message---+
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