PPro can’t support higher bit depths than 8??

[Chris Borjis]

there’s nothing in the preferences or settings to indicate this?

maybe its doing 12 or 10 bit only.

make a 16-bit psd with a smooth color gradient, see if it bands.

[Vince Becquiot]

Hi Jim,

The answer is no, it is not supported.

However, there is often a confusion between video and image bit depth.

With RGB, 16 bits means per color channel. So at 16 bits per channel, that’s a total of 48 bits without an alpha channel.

This is often used for High Dynamic Range images that Photoshop can process.

In Photoshop, you can change the mode to 8 bits per channel.

Vince Becquiot

Kaptis Studios
San Francisco – Bay Area

[Tim Kolb]

TIFs are not supported at 16 bit…however 16 bit PSD files are supported.

AJA drivers installed to drive Kona products or the IO Xpress installs a 16 bit TIF capability (along with other formats).

PPro itself is capable of 32 bit float…deeper than any other NLE other than FCPX. You need to check the “max bit depth” in the sequence settings.

TimK,
Director, Consultant
Kolb Productions,

Adobe Certified Instructor

[Jason J rodriguez]

Premiere Pro will support up to 32-bits per channel in both RGB and YUV color-spaces … this is what is typically referred to as “32-bit float”, since those 32-bits are used to store a floating point value that can range from at least 1e-37 to at least 1e37 in increments of at least 1e-9 (i.e., 1/1,000,000,000) … these numbers are platform specific, but suffice to say PPro is capable of some very precise arithmetic. Since it supports 16-bit Photoshop files, and the values in such a file can be described within the much larger 32-bit floating point format that Premiere’s internal engine works at, it will not dither them down to 8-bits per channel. That being said, in order to enable all renders to take advantage of PPro’s deep pixel support, you have to make sure that you’ve turned on “Render at maximum depth” in your preferences … otherwise some truncation/dithering could occur, although Adobe’s never been exactly clear what the criteria that would cause truncation to occur is.

Jason Rodriguez
Virginia Beach, VA

[Jim Bachalo]

Thanks for all the replys!
FInally have a PPro-AE dynamic link workflow working properly with color management enabled (in AE at least).
In AE I apply all my CC , blends and fx in a fully linearized 32bpc workspace but have to precompose and and a color profile converter effect in order for the previews to be correct back in PPro.
I’ve submitted a feature request for PPro to support color management, a major omission in my estimation.

Local is the new global