Canon Log Feature Upgrade for the EOS 5D Mark IV – Not What The Rumors Said – But Still Valuable!

by planetMitch5 Comments

Well, sometimes when we post rumors, they don't turn out quite like we'd hoped… and when we posted the rumor from my friend at CanonRumors about the firmware update for the Canon EOS 5D Mark IV having a better crop factor in 4k, well it turned out to be wrong and I apologize for contributing to the hopes and excitement.

Canon yesterday announced the firmware upgrade and it includes Canon Log (or C-Log), but that's it.

And it not only is a paid upgrade ($99) but it requires your camera to make a trip to Canon for the installation (it is apparently more than just firmware).

And there are plenty of complainers out there already complaining about the upgrade not including everything the rumors said it might. I thought about including some of those videos, but decided against it… I mean really? Sure some are disappointed, but I also know some folks who are dang excited! One friend has 4 5D4s and he's going to upgrade all of them.

What do you think? Sound off in the comments if you want, but be warned that I might not approve comments that are not appropriate.

EOS 5D Mark IV 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.

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

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.

EOS 5D Mark IV Canon Log Upgrade Details

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.

Specific Comparison of Canon Log

Notes about Image Quality with Canon Log:

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).

Via Canon Press:

Canon U.S.A. Announces Canon Log Feature Upgrade for the EOS 5D Mark IV Camera

MELVILLE, N.Y., April 20, 2017 – In a move to help meet the demands of professional filmmakers, Canon U.S.A., Inc., a leader in digital imaging solutions, today announced the availability of a feature upgrade for the EOS 5D Mark IV DSLR camera that will add the ability to record with Canon Log. With this upgrade, the EOS 5D Mark IV can achieve a cinematic look similar to what can be achieved using Cinema EOS cameras, allowing it to serve as a second camera on a Cinema EOS shoot or to stand alone as a cinema camera. Current EOS 5D Mark IV camera owners can have the Canon Log feature upgrade installed for $99 at any of the Canon service centers across the U.S. starting in July. The camera will also be available for sale (body only) with the feature upgrade pre-installed starting in July, with an estimated retail price of $3,599.00*.

Canon Log uses the image sensor’s characteristics in a way that allows for a wide dynamic range, minimal loss of detail in shadows and highlight areas and an increased range of choices when color grading. Color grading options available with Canon Log include optimized color saturation, accurate colors with minor color bias, visual continuity and accurate skin tones.

Canon Log also works with and complements several EOS 5D Mark IV camera features including 4K shooting, Dual Pixel CMOS AF, high speed 119.9p shooting in HD and 59.94p shooting in Full HD. Additional features include Movie Servo AF allowing the camera to focus on a subject even when the shutter button is not used, the ability to register custom shooting modes in Canon Log and movie shooting in Canon Log on a compatible iOS® or Android™ device using the free Canon Camera Connect app1.

To learn more about the feature upgrade and how to get it installed, please visit

The EOS 5D Mark IV camera with Canon Log will be shown at the NAB show in Las Vegas, NV, April 24-27, in the Canon U.S.A., Inc. Booth #C4325 in the Central Hall of the LVCC. Follow Canon throughout the show on Instagram at @CanonUSA and Twitter at @CanonUSApro.

About Canon U.S.A., Inc.
Canon U.S.A., Inc., is a leading provider of consumer, business-to-business, and industrial digital imaging solutions to the United States and to Latin America and the Caribbean markets. With approximately $29 billion in global revenue, its parent company, Canon Inc. (NYSE:CAJ), ranks third overall in U.S. patents granted in 2016.† Canon U.S.A. is committed to the highest level of customer satisfaction and loyalty, providing 100 percent U.S.-based consumer service and support for all of the products it distributes in the United States. Canon U.S.A. is dedicated to its Kyosei philosophy of social and environmental responsibility. In 2014, the Canon Americas Headquarters secured LEED® Gold certification, a recognition for the design, construction, operations and maintenance of high-performance green buildings. To keep apprised of the latest news from Canon U.S.A., sign up for the Company's RSS news feed by visiting and follow us on Twitter @CanonUSA. For media inquiries, please contact [email protected].

(cover photo credit: snap from Canon)


  1. The upgrade should support c100/300 picture profile import so you can use custom profiles or even the popular WideDR profile that works better than CLog in 8 bit in my experience…

  2. Great to have the CLog upgrade coming from Canon, but I think it is a VERY poor business decision to ask initial buyers of the 5DM4 to pay for it, especially when the camera has to go out of commission and be shipped back to Canon, AND, it will be made available for free to purchasers of the camera this summer. Why penalize your loyal followers/buyers Canon?

    1. Author

      I apologize for not pointing this out in the story… this summer, there will be TWO 5d4s on the market – one with C-log and one without. The one WITH C-log will be $99 more expensive. So, consumers this summer will not be getting it for free.

  3. Pingback: Somewhat Critical Media Coverage Very Unlikely to Affect Canon (CAJ) Share Price - Sports Perspectives

  4. **** Good news!: EOS 1DX Mark II will now get the same C-Log update option too! Thank you Canon ****

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