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EOS 5D Mark IV: Canon Log
Canon Log

Supercharge your Moviemaking

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.

Image Characteristics

Image Characteristics Image Characteristics

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.

Look Up Table Look Up Table

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.

Look Up Table Look Up Table

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 scheduled to be available through authorized Canon Factory Service Centers in July 2017, and is subject to change. Watch the video and see information below for details on how to take advantage of Canon Log with the EOS 5D Mark IV.

Specification Comparison of Canon Log Specification Comparison of Canon Log

Dual Pixel CMOS AF
Dual Pixel CMOS AF
Manual exposure only
(1) Scene Intelligent Auto
(2) Program AE (shiftable)
(3) Shutter-priority AE (Safety shift possible)
(4) Aperture-priority AE (Safety shift possible)
(5) Manual exposure
(6) Bulb
(7) Custom shooting mode C1, C2, C3
High Frame Rate Videos
4K Frame Extraction
Yes (In the camera)*
Yes (In the camera)
HDMI Output
Picture Style / Auto Lighting Optimizer / Highlight Tone Priority / HDR Movie / Time-lapse Movie
Registering Custom Shooting Modes

* The color space of the captured image is only ITU-R BT.601.

When Canon Log is set, horizontal noise stripes may appear in movies depending on subject or shooting conditions. It is recommended to shoot a few test movies and check before the actual shooting. Note that noise may become more noticeable especially when you apply strong contrast during color grading of the shot movie.

Horizontal noise stripes tend to appear when the subject is dark and flat or [Peripheral illum.] is set to [Enable]. This noise may also appear when ISO speed is relatively low, such as at ISO 400.

When the noise is noticeable, it is recommended to set [Peripheral illum.] to [Disable], shoot in brighter exposure, and perform brightness adjustment during color grading. Also, noise may be decreased when you shoot at ISO speed lower than ISO 400 (even though the dynamic range will be narrowed).

Purchase Pre-installed Version

Purchase Pre-installed Version

Upgrade Your 5D Mark IV

Upgrade Your 5D Mark IV

EOS 5D Mark IV


For inquries call 1-800-OK-CANON (1-800-652-2666) during regular business hours.

Certain effects and images are simulated.
† Canon U.S.A. will perform the feature upgrade for a $99 fee and requires the camera be sent to a Canon Factory Service Center. Shipping and handling charges may also apply. Upgrade is scheduled to be available July 2017. Specifications and availability subject to change without notice.