Slow Motion exports dark

[Tam Perl]

Jeremy — use After Effects to do the slow-mo. Either copy paste your footage into an after effects comp, or use dynamic link — then RENDER out of After Effects and use your rendered footage. I know — that’s not how it should be, and it does seem to be a bug. It should work as advertised in Premiere. It doesn’t. That’s it.

Tam

[Jon Barrie]

What kind of footage are you working with? AVCHD? mp4? What camera was used?
Which type of workflow are u using for the slow mo? Speed/Duration or timeremapping?
I want to test this myself a I haven’t experienced this issue.
– Jon Barrie 😉

Jon Barrie
aJBprods
http://www.jonbarrie.net

[Jeremy Wiles]

I took it into AE and rendered it out without any problem. If Adobe can hear me… Please fix this problem.

I shot it with the Red camera in 4k resolution. In Premier CS4 it is scaled down to 1920×1080. Any clip that had slow motion on it went dark upon render in QT.

For people experiencing this problem, you simply need to export those clips from AE, and apply some frame blending while you’re at it and then import back into Premier.

Thanks for the help.

Jeremy

[Tam Perl]

Jon,

In my case this happened a number of times. The common threads to mention are — AVCHD (.MTS files) shot on a Panasonic AG-HMC150P at 1280x720p. using 1/60th (and sometimes 1/120) shutter. To workaround OTHER issues with Premiere and MTS files, the MTS were transcoded using Adobe Media Encoder into H.264 .mov files. Inside the timeline, the H264 clip was stretched or speeded up using either the stretch tool, or the “Duration” dialog box. A rendered preview within Premiere was fine. The final output showed a drop off of brightness when the slowed / speed portion played. The rest of the render was fine. The same clip — when not stretched or sped up — played fine.

Thanks

Tam

[Eric Monroe]

are you editing on a mac or a pc?

[Jeremy Wiles]

I’m on a PC.

[Tam Perl]

And I’m a Mac

🙂
(sorry — couldn’t resist that.)
But yes, I am on a Mac

Tam

[Theo Buchinskas]

wow. I can’t believe that adobe would be fine with such a glaring error in the media encoder.
I was running into the same problem with some clips I created in AE, and brought into premiere. Usually I’m a FCP user but this project had a restriction that I could only use adobe software… (don’t ask!) Glad I found this post, or I would have spent all day re-rendering files out of AE! For the life of me I couldn’t figure out why some clips went dark and others not. After reading this I checked, and sure enough, only clips I changed duration/speed on were the ones that lost brightness.
For the record, I’m on a mac as well.

[Jon Cohen]

If anyone knows of any solutions to this problem by now, please reply. I’m having the same issue and would really rather not go through the After Effects thing.

[Tam Perl]

I have never found a solution, although after a while I stopped looking — I simply go the After Effects route. If you do find a solution, please DO post it here. Many thanks.

Tam