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Canon 5D, Mpeg Streamclip, Interlaced Scaling?

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Sean Bauer
Canon 5D, Mpeg Streamclip, Interlaced Scaling?
on Jul 8, 2011 at 10:33:15 am

I recently shot a feature on Canon's 5D and I have been importing and converting footage to Apple ProRes for Final Cut, using Mpeg Streanclip.

After converting 75% of the footage, I realized that I was supposed to UNCHECK the "interlaced scaling", something I DIDN'T do.

The fact that you have to uncheck "interlaced scaling" every time is very annoying but can't really complain about an overall awesome free program.

Does anyone know if the footage I spent a weeks worth of time converting (D5 to ProRes) will be ok to edit or to I need to re-convert everything to preserve the best quality??? What do I Do???

Also, what about the other checkbox settings; 'deinterlace video", "frame blending" & "better downscaling"? What to check, what not to check?

OR Should I just go with a different program all together to convert my bulk of footage? Final cut or compressor maybe?

Thanks for any input you pros can send my way.

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Nels Chick
Re: Canon 5D, Mpeg Streamclip, Interlaced Scaling?
on Jul 13, 2011 at 6:06:00 am

Take a close look at your ProRes clips and check for interlaced artifacts. My guess is that you're fine, and I wouldn't worry about the other check boxes.

Deinterlace - Don't use it because your 5D footage is not interlaced

Frame Blending - Don't use it, unless you want to change the frame rate of your footage, and even then, MPEG Streamclip probably isn't the best choice for that

Better Downscaling - Only use it if you are converting your footage to a smaller frame size, like 720p or SD

If you are converting 1080 24p H.264 Quicktime files to 1080 24p ProRes Quicktime files, there shouldn't be any scaling involved, so Interlaced scaling wouldn't be triggered (that's just my guess, so take a close look at the footage).

I like to convert through the log and transfer function in FCP 7, but I also recommend Compressor or Droplet for batch conversions. I love MPEG Streamclip too. If you aren't using the batch window, I suggest you do. Also, I like to make presets in MPEG Streamclip, so I don't have to change all my settings every time.

All in all, my bet is that your footage will be fine.

Good Luck!

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