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The EOS C700 has an extended sensitivity range – from ISO 100 up to ISO 102,400. This
control is shared between an analog control (controlling the gain of the column amplifier within
the CMOS image sensor [ 7 ] ) and a downstream digital control. In the case of the on-board
recorded signals both controls are used. For the 4K RAW signal the analog control within the
image sensor is progressively stepped up from ISO 800 to ISO 25,600 – with the separate
digital settings sent as metadata that implements this control in postproduction.
Figure 2 The EOS C700 offers a choice of two on-board recording codecs – the Canon XF-AVC and the
Apple ProRes – in addition to external uncompressed 4K / UHD RAW recording in a dockable
recorder
3.0 4K / UHD RAW RECORDING
Canon partnered with Codex and their engineering teams to create a high performance
integrated RAW recording solution for the Cinema EOS C700 camera in the form of a directly
dockable compact recorder [8]. The 4K RAW signal is also output via standardized 3G-SDI
interfaces (the number of these being dependent upon the frame rate) for connection to a
system or an external recorder.
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