Mailing List AE-List@media-motion.tv ? Message #44631
From: Jack Tunnicliffe <jack@javapost.ca>
Subject: Re: [AE] frame rate weirdness
Date: Sat, 23 Jun 2012 10:28:07 -0600
To: After Effects Mail List <AE-List@media-motion.tv>
True enough, Warren. I do quite a few demos in the course of a year for the local university, media college as well as a couple of high schools. One school fills a bus and travels 250 miles to attend a one hour demo each year. 

Most students are very engaged and fascinated but invariably there are one or two falling asleep. I find it hard to believe they could be this way as we put on a very engaging dog and pony show of them, but these people are probably not attending a film and video class because it is their first love or passion.

Often we find very experienced editors making mistakes with frame rates and pulldown. Some admit this techie stuff just eludes them and they look to us for help. The most prevalent issue we see is 29.97 footage being dragged into 23.98 projects then that footage is exported or rendered out and frames are thrown away. We have to try to get back to source or actually attempt to fix with products like frame restorer.

I had posted a shot a couple of months ago, but worth repeating where a movie used a GoPro camera at 29.97 and dropped the footage into a 23.98 timeline. Then the footage was exported at 23.98 for a vizfx person to remove the shadow caused by the helicopter. The source footage went missing. We were doing a DCP and the editor at our shop alerted me to the shot. I called the producer who said, we were told this couldn't be fixed by the biggest post facility in Toronto. I told him we could fix it. Took me 90 minutes with Frame Restorer, a little warp stabilizer as well as color correcting the guard rail back to green from being blown out to white by the GoPro. Check out the before and after here. Needless to say the producer was on top of the world when he saw this fix to his movie.


Jack Tunnicliffe
Java Post Production

On Jun 23, 2012, at 2:45 AM, Warren Heaton at UCLA Extension <wheaton@ucla.edu> wrote:

Whenever this is the lecture topic, students tend to glaze over or go on Facebook.





Sent from my iPad

On Jun 22, 2012, at 3:46 PM, Jack Tunnicliffe <jack@javapost.ca> wrote:

Interesting, but I can tell you we see this every day. A we are a post facility, we get footage from editors from all over the place. Very few of them seem to understand anything about frame rates, pulldown, interlacing, etc. It's like editors never go to school for this, or does the school know enough to teach them the ins and outs? We just end up fixing the problem and sending them a bill so there is an upside to knowing how to fix these issues. 

Jack Tunnicliffe
Java Post Production
www.javapost.ca



On Jun 22, 2012, at 4:33 PM, Chris Meyer wrote:

We used to find we had to re-conform Avid footage in particular all the time. Just force 29.97 in the AE Interpret Footage (and mocha project) dialogs.

still pining for universal 30,000/1001 support -
Chris


On Jun 22, 2012, at 12:06 PM, pixelbot@comcast.net wrote:

we sent out some QTs to be color corrected and when we got them back I was tracking them for screen replacement - my mocha tracks looked spot on, and then when I used those track in AE - every track looked liked it was playing catch up, I tried multiple times to track and try cc power pin vs corner pin nothing would fix it, and then I looked at the frame rate in AE it showed that they were 29.9625 not 29.97 - once I reinterpreted to 29.97 every track was spot on. I going to have to check with the post house that did the CC - I wouldn't even begin to know how they screwed that up.

timt


 
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