Canon EOS C300 Mark III, Manual

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Proxy Clips (Simultaneous Recording)
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Proxy Clips (Simultaneous Recording)
In CAMERA mode, while recording a primary clip on a CFexpress card, you can simultaneously record the same
scene as a proxy clip (XF-AVC format) on the SD card. Because proxy clips have smaller files, they are suitable
for offline editing.
Video configuration of proxy clips
1
Variable bit rate (VBR) set automatically depending on the video configuration of the primary clip.
2
Only when > [
Æ
Recording/Media Setup] > [Resolution/Color Sampling] is set to [3840x2160 YCC422 10 bit] or
[1920x1080 YCC422 10 bit].
3
Only when > [
Æ
Recording/Media Setup] > [Resolution/Color Sampling] is set to [1280x720 YCC422 10 bit].
1 Select > [
Æ
Recording/Media Setup] > [Sub Rec Format] > [XF-AVC (SD Card)].
• The
8
icon will appear in green at the top left of the screen.
2 Select > [
Æ
Recording/Media Setup] > [Sub Rec Color Conversion] > [Comform to Custom
Picture] or [BT.709].
• When you select [BT.709], proxy clips are recorded after converting the gamma curve and color space. The
value set for > [
¢
Monitoring Setup] > [Gain for HDR  SDR Conv.] (
A
157) is applied to the
proxy clips as well.
3 Press the REC button to start and stop recording.
• Proxy clips will be recorded on the SD card simultaneously with the primary clips recorded on the CFexpress
card.
NOTES NOTES
• If the recording of the primary clip stops during simultaneous recording, recording of the proxy clip will stop as
well.
• Simultaneous recording of proxy clips is not available when the main recording format is set to XF-AVC and
slow & fast motion recording is activated.
• If there is no CFexpress card inserted in the camera, only the proxy clip will be recorded.
• SDHC cards are formatted using the FAT32 file system so, when recording proxy clips, the video (stream) file in
the clip will be split approximately every 4 GB. Playback with the camera will be seamless.
SDXC cards use the exFAT file system so the stream file in the clip will not be split.
Main recording format
Proxy clips
Format Resolution Color sampling Frame rate Bit rate
1
RAW
XF-AVC
2048x1080
YCbCr 4:2:0, 8 bit
Same as the
primary clip
24 Mbps,
35 Mbps
XF-AVC
2048x1080,
1920x1080
2
,
1280x720
3
17 Mbps
3
,
24 Mbps,
35 Mbps