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Canon C300

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meenakshi nangareCanon C300
by on Aug 18, 2012 at 9:47:01 am

Hi

We are shooting with canon c300 and I need to know how many hard drives would I need to carry to store all the data that we shoot in a week.

Can anyone tell me how much disk space would be required for 1 min or 1 hour footage?

and what would be file size after I convert MXF into Apple422ProResLT ?

Thank you


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Rafael AmadorRe: Canon C300
by on Aug 18, 2012 at 2:58:44 pm

The Canon 300 shots XDCAM-HD/422 so 50Mbps.
That means 50/8 MB per second, that means:
- 6,25 MB each second, or
- 375 MB per minute, or
- 22,5 GB per hour of recording.




[meenakshi nangare] "and what would be file size after I convert MXF into Apple422ProResLT ?"
That's depends of the size and time-base you will shot.
Here you can find the all the possible data rates;
http://documentation.apple.com/en/finalcutpro/professionalformatsandworkflo...

rafael

http://www.nagavideo.com


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Ryan HolmesRe: Canon C300
by on Aug 18, 2012 at 6:02:31 pm

[Rafael Amador] "The Canon 300 shots XDCAM-HD/422 so 50Mbps.
"


That's not technically correct. The Canon C300 shoots uses the Canon XF codec (4:2:2 sampling) in a MXF wrapper. But you are correct that it is at 50Mbps at it's highest quality. It does have a a few lower bit rate settings.
http://usa.canon.com/cusa/professional/products/professional_cameras/cinema...

Also I would not transcode the MXF files from a C300 to ProRes(LT) unless you are intending those files as an offline edit. I would at least (and commonly do) use ProRes422 and maybe even ProRes(HQ) depending on the scene and the intended workflow (vfx, color grading, graphics, etc.).

A bandwidth calculator will help you figure out overall file sizes beyond what Rafael listed above:
http://web.forret.com/tools/bandwidth.asp?speed=900&unit=Kbps

Ryan Holmes
http://www.ryanholmes.me
vimeo.com/ryanholmes


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+1


Shane RossRe: Canon C300
by on Aug 18, 2012 at 7:29:00 pm

Interesting...because when we bring this into Avid...consolidate and not transcode, it shows up as XDCAM 422.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Andrew RendellRe: Canon C300
by on Aug 18, 2012 at 8:33:38 pm

[Shane Ross] "Interesting...because when we bring this into Avid...consolidate and not transcode, it shows up as XDCAM 422"

Yeah, I've noticed that as well. I see that Canon's codec is a long GOP 8 bit MPEG2 based one, just as XDCam is.

Strangely (or perhaps not) I made the mistake of importing some Canon mxf's with Sony's XDCam utility last week and the pictures worked! The audio didn't, which was what alerted me to the fact that I was doing something wrong, but they must be very similar.


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Ryan HolmesRe: Canon C300
by on Aug 18, 2012 at 9:54:23 pm

[Shane Ross] "Interesting...because when we bring this into Avid...consolidate and not transcode, it shows up as XDCAM 422."

Isn't there a plugin for Avid to bring in C300 footage? Is that interpreting it as XDCAM?

From the Canon Cinema EOS website, "The Canon EOS C300 and EOS C300 PL deliver incredibly high quality images with a full 4:2:2 XF Codec, creating digital files robust enough for major post-production."
http://cinemaeos.usa.canon.com/products.php?type=Camera-c300

Maybe Avid's doing some voodoo magic in the background to play it back using XDCAM as the decoding engine?

Ryan Holmes
http://www.ryanholmes.me
vimeo.com/ryanholmes


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Shane RossRe: Canon C300
by on Aug 18, 2012 at 11:12:09 pm

YOu need plugins to AMA a lot of things. Just like you need one to Log and Transfer this to FCP. But I recall hearing a Canon rep at NAB say that it is XDCAM based.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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meenakshi nangareRe: Canon C300
by on Aug 18, 2012 at 6:18:25 pm

Thanks a lot Rafael :)


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Phil BalsdonRe: Canon C300
by on Aug 18, 2012 at 10:42:51 pm

A 32Gb card holds 80 mins of footage at 50mbps (1080p 25fps) (Cameras highest quality)

Use the Canon XF Utility to back up your cards to the computer. This completes the task in about 6 - 8 times faster than real time.
It also enables you to preview all the footage (Quicktime will not)

Installing XF Utility on your edit machine also installs the plug in necessary to log and transfer footage into FCP as your choice version of ProRes.
The log and transfer process is also very quick (again much faster than real time, for me about 4 x faster than real time on a MacPro 2.8 Quad), especially if you have experienced the H264 process from Canon HDSLRs.

Premiere Pro has a specific setting for Canon XF and another for XDCam. Files can be brought in natively using the XF setting with needing to render.

The Canon website has a downloadable plug in for AVID, but I have no experience with Avid so unsure why there is a specific plug in.

Tip. Use the camera's Canon C Log scene style, it'll give you the best results in post for grading, some of the other settings are very contrasty and or over saturated. The Magic Bullet LUT Buddy plug in can be used in FCP with LUTs that you can find along with some good info over at the Abelcine blog.

Cinematographer, Steadicam Operator, Final Cut Pro Post Production.
http://philming.com.au
http://www.steadi-onfilms.com.au/


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Rafael AmadorRe: Canon C300
by on Aug 19, 2012 at 2:42:06 am

[Ryan Holmes] "That's not technically correct. The Canon C300 shoots uses the Canon XF codec (4:2:2 sampling) in a MXF wrapper. But you are correct that it is at 50Mbps at it's highest quality. It does have a a few lower bit rate settings.
http://usa.canon.com/cusa/professional/products/professional_cameras/cinema....."

Same dog with a different collar.
A 50Mbps CBR LPG MPG-2 8b/422, wrapped on MFX instead of QT.
But you are right, nominally is not XDCAM that is a Trade Mark of SONY.


[Ryan Holmes] "Also I would not transcode the MXF files from a C300 to ProRes(LT) unless you are intending those files as an offline edit."
Fully agree with you.
Prores or Prores HQ.
rafael

http://www.nagavideo.com


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meenakshi nangareRe: Canon C300
by on Aug 19, 2012 at 7:06:31 pm

ya I use ProRes(LT) for offline edits.


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