Wednesday, October 3, 2012

Re: [Avid-L2] AMA C300 clips

 

> On the heels of this...
>
> Has anyone gone through a project using C300 footage? We have a project
> coming up shooting eight days and two cameras on the C300.
>
> I'm thinking we're best to AMA the footage and then transcode, going back
> to the AMA clips before grading. Has anyone cut natively with the camera
> MXF footage? Storage permitting, would we suffer a performance hit cutting
> off of the native footage?

Hi Scott,

I've completed a number of projects using the C300, and the XF305 which
is the same files as the C300.

I started a set of training videos about a year ago and they were shot
on XF305 and 5dMkII and all the material was AMA'd into the system and
away I went. When I started this project I was running on an older dell
laptop (D830 /w7-64/ 4gb ram/ USB 3 drives etc) and once I got into the
project things started running slow. Sometimes I would have to wait
20-30 seconds when I lifted a section of video out of the sequence and
generally things took a moment or two to 'have a think about things'.
Certainly not a situation you would want to be in with a client sitting
next to you! The sequences vary in length between 15 and 50 minutes and
are 2 camera sequences v1/v2 with cuts every few seconds (as in no 10
minute shots)

Having since upgraded to a more powerful machine the same problems exist
but are just quicker. We have also started using a C300 on the shoots,
but there was no problem with that as, as I mentioned, the C300 and
XF305 material is the same in codec and file structure. Since the
project was started with AMA'd material then I decided to just go with
it till the project was finished. But in hindsight I feel I would have
been better to have transcoded from day 1.

Another project where I have been using file based cameras (12 camera
theatre show with JVC, GoPro, Canon and Sony cams) I transcoded the
rushes overnight on the first day and I've not had any problems. If you
have the space to transcode to DNX120 or 185 (depending on if you shot
at 35 or 50 mbs on the C300) then I can't see a need to go back to the
AMA material except in case of grading emergency! But I've not needed
that even in some extreme circumstances - (http://vimeo.com/39797864) )

Hope this helps,

Marcus Dawson
--
www.bigideasproductions.co.uk

__._,_.___
Recent Activity:
Search the official Complete Avid-L archives at:   http://archives.bengrosser.com/avid/
.

__,_._,___

No comments:

Post a Comment