Whether using the upcoming pre-installed version or an upgraded version of the current model, the new Canon Log^ feature enables the EOS 5D Mark IV camera to record 4K and HD video files with expansive dynamic range and wide exposure latitude, making it simple to coordinate color settings with other Canon cameras in multi-camera set-ups. It’s ideally suited for extensive post-production processing.
^ The Canon EOS 5D Mark IV camera does not come standard with Canon Log. The Canon Log feature can only be used with the Canon EOS 5D Mark IV Body with Canon Log option or using an upgraded version of the current EOS 5D Mark IV camera.
Canon Log helps record images for post-processing that feature a wide dynamic range. Captured 4K and Full HD video files feature suppressed contrast and sharpness and increased dynamic range of up to 800% or 12 stops (at ISO 400 or above). This means more detail in the highlights, enhanced details in the shadows, and because of its balanced image quality – the flexibility to work with color saturation and tone to create a specific look, or to match other recorded media. A View Assist setting provides a preview on the LCD monitor of how an image may look with post-processing characteristics.
The Canon Log feature includes two Look Up Tables (LUTs) that correct the recorded image’s gamma and color space when viewed on an external monitor. With Canon Log 10 to Wide DR LUT, the video file is converted to Wide Dynamic Range gamma, with well-preserved highlights and shadow detail. With Canon Log 10 to ITU-R BT.709 LUT, the file is converted to ITU-R BT.709, providing conventional camcorder specs for viewing in a color space consistent with an HDTV.
While these tables show LUTs based on 10-bit input, the output for an EOS 5D Mark IV camera featuring Canon Log is 8-bit.
Canon U.S.A. Technical Advisor, Rudy Winston, explains the benefits, operation and upgrade procedure for adding Canon Log gamma to the EOS 5D Mark IV. This upgrade is available through authorized Canon Factory Service Centers. Watch the video and see information below for details on how to take advantage of Canon Log with the EOS 5D Mark IV.