Return-Path: Received: from host6.canaca.com ([66.49.160.142] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 4889156 for AE-List@media-motion.tv; Sat, 03 Nov 2012 21:50:40 +0100 Received: from [74.198.150.0] (port=61709 helo=[25.89.68.128]) by host6.canaca.com with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.80) (envelope-from ) id 1TUkiZ-0005RO-7B for AE-List@media-motion.tv; Sat, 03 Nov 2012 16:53:32 -0400 Subject: Re: [AE] REC 709 level shifts References: From: Jack Tunnicliffe Content-Type: text/plain; charset=us-ascii X-Mailer: iPhone Mail (10A525) In-Reply-To: Message-Id: <0E525AC7-11FF-4065-90F1-83CFEC9D5C76@javapost.ca> Date: Sat, 3 Nov 2012 14:53:11 -0600 To: After Effects Mail List Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (1.0) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host6.canaca.com X-AntiAbuse: Original Domain - media-motion.tv X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - javapost.ca X-Get-Message-Sender-Via: host6.canaca.com: authenticated_id: jack+javapost.ca/only user confirmed/virtual account not confirmed X-Source: X-Source-Args: X-Source-Dir: Can u say "B-a-n-d-i-n-g"? When is this 16-235 stuff going to go away? I rem= ember back in 1995 being limited in dynamic range with Media 100, exporting f= ootage to my Cosa 2 (soon to be After Effects)=20 Can this possibly still be happening almost 18 years later when we are all w= ork in 32 bit float with 4 and 5k images? That's my rant for a Saturday. Jack Tunnicliffe Javapost Production Sent from my iPhone On 2012-11-03, at 12:38 PM, Brendan Bolles wrote: > On Nov 2, 2012, at 4:21 PM, Sixtus Beckmesser wrote: >=20 >> I sent some uncompressed AVIs to the BD authoring house, they converted t= hem to AVCs and burned them on a BD. When I got the BD back for testing, all= the stuff near black (16) has been shifted upward in level. What have I don= e wrong here? >=20 >=20 > Looks like whatever they're using to create the AVCs is assuming that the i= nput is full range (0-255). If Blu-Ray uses 16-235, that encoder is adding i= t. If your material already has the 16-235 in it, you're getting a double-w= hammy and your blacks are getting lifted too high. >=20 > Probably the easiest thing is to re-send your material to them as 0-255. I= t's possible they have an option for the encoder to expect 16-235 material, b= ut I guess that's not their default. >=20 >=20 > Brendan >=20 >=20 > +---End of message---+ > To unsubscribe send any message to