Canon XF300 User Manual download pdf (Page 10)

XF300/305 Whitepaper

Avid

4:2:2 color sampling at up to 50Mbps provides ultra- ne graduations

in tone and color and retains the highest quality image for use in post

production processes such as chroma keying, color grading, advanced

compositing and e ects.

File format typically refers to how information is stored on disks,

and is often erroneously interchanged with codecs. File formats in-

clude things like Audio Video Interleave (.AVI) or Quicktime. A format

does not necessarily mean anything in regards to video quality; it

only dictates the underlying structure of a  le. Formats like AVI and

Quicktime have little to do with the underlying codec, except that the

limitations of a format must be adhered to in the codec. What a format

is unable to handle, any codec within it will also have that limitation.

Material eXchange Format (MXF)

The Canon XF305 and XF300 record industry standard Material eX-

change Format (MXF)  les, an open-source  le format compatible with

major  le-based work ow systems used by professionals today.

Canon has adopted MXF as a “wrapper” for MPEG-2 4:2:2 (and 4:2:0,

depending on record settings) encoded video stream and linear PCM

audio captured by the XF305 and XF300. While Adobe Premiere CS5

and Grass Valley Edius o er native support for this new MXF format,

software plug-ins have been developed (Canon XF Plug-in for Final Cut

Pro and Canon XF Plug-in for Avid Media Access) to ensure optimal

compatability.

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Canon XF300 User Manual Page 10