Canon EOS C300 Mark III Review

Canon EOS C300 Mark III Review

Produce videos worthy of being shown in theaters using the Canon EOS C300 Mark III Digital Cinema Camera. This camera has a Super 35mm Dual Gain Output sensor and the ability to record high dynamic range content with up to 16 stops of latitude, making it an excellent HDR camera with a low noise level.

The EF lens mount allows for compatibility with Canon’s already extensive lineup of DSLR lenses and the company’s line of cinema prime and zoom lenses designed specifically for the EF mount, as well as both 2.0 and 1.33 anamorphic lenses. In addition, the end user can also utilize a PL mount that is sold separately with this mount, making this mount interchangeable.

The sensor is matched with the Canon DiGIC DV7 image processor, which takes the basic information provided by the sensor and processes it for use in various applications. These applications include high frame rate recording, raw recording, HDR-PQ output, electronic image stabilization (EIS), and proxy recording.

In addition to recording video at a resolution of up to DCI 4K on dual CFexpress cards, the camera also has an SD card slot for recording additional still photos. It is possible to record high frame rates in 4K raws at up to 120 fps, and in 2K cropped mode, you can register at up to 180 fps.

Both the Cinema RAW Light and XF-AVC recording formats from Canon are supported. This allows for the production of DCI 4K images using a 10-bit, 4:2:2 Long GOP codec. In addition, proxy recording is available, enabling you to increase your post-production work’s speed significantly.

The camera also features Canon’s Log 2 and Log three gamma settings, which provide greater versatility during post-production. These modes produce outstanding tone reproduction in the highlight and low-light parts of an image and an enlarged dynamic range.

In addition, the Canon C300 Mark III supports user-created LUTs, which may be applied to monitors, the LCD, or the viewfinder to achieve the most accurate color reproduction. In addition to providing precise focusing, the Dual Pixel CMOS AF (autofocus) support that Canon provides also includes touch AF and facial detection capabilities.

In addition to timecode I/O and genlock input BNCs, the camera can output up to 12G-SDI over a single BNC cable. Using the inbuilt mic, mini-mic input, and XLR ports, it can support up to four audio channels; additionally, an extension unit may be added to handle up to four audio tracks through XLR inputs.

The body has a detachable design that allows it to be disassembled or reassembled using the handle; a 4.3-inch rotating touchscreen LCD unit with full controls, grip, and thumb rest is included in the package.

Dual Gain Output (DGO) Sensor for Canon Super 35 Cameras

The EOS C300 Mark III incorporates Canon’s Super 35mm Dual Gain Output (DGO) Sensor, which is the next generation of this sensor. This new sensor is compatible with Canon’s exclusive Dual Pixel CMOS Autofocus technology and can produce dynamic ranges of six stops in each direction.

By reading out each pixel with a distinct gain, the recently invented imaging technology known as the DGO Sensor can a high dynamic range while maintaining low noise leverages images using pixels captured with a saturation-prioritizing amplifier for bright areas and a noise-prioritizing amplifier for darker parts. The former is used for the bright spots, and the latter is used for the darker sections.

Image Processor for the DIG! C DV7

The Canon DIG! C DV7 image processor is included in the EOS C300 Mark III. This processor takes the vast amount of raw information recorded by the imaging sensor and processes it to be output.

DiG! C also powers features such as high frame rate recording, the Dual Gain Output (DGO) Sensor, Dual Pixel Autofocus, Cinema Raw Light Recording, HDR (PQ) output, Electronic Image Stabilization, and proxy recording, amongst others.

Autofocus with Dual Pixels of CMOS, Touch AF, and Facial Contour Detection

Dual Pixel CMOS AF Technology is incorporated into Canon’s Cinema EOS C300 Mark III camera. To facilitate DAF, the CMOS sensor of the camera is outfitted with two photodiodes in each pixel. When using compatible lenses, it is thus possible to detect two independent image signals at each photosite, compare them utilizing phase difference, and give autofocus functionality.

DAF can the scene and determideterminer whether the topic is in focus but also in what distance range (near or distant) and by what percentage it is out of focus. Users who want to focus manually but still enjoy the positive feedback DAF provides through the guide interface can use the intuitive Focus Guide that DAF powers.

High Frame Rate; 4K at 120p and 2K at CROP at 180p respectively

The brand-new chip design and DiG! THE C DV7 processor included in the EOS C300 Mark III makes it possible for the camera to achieve extremely high frame rates. In 4K, it is possible to achieve frame rates of up to 120 fps, while the 2K CROP mode offers even more flexibility by allowing for speeds of up to 180 fps.

Canon’s Log 2 and 3 Gammas, respectively

The Canon Log 2 and Canon Log 3 gamma systems are compatible with the EOS C300 Mark III. In the post-production phase, Canon Log is intended to faithfully represent the whole tone range that the CMOS image sensor can capture. In addition, log operations give users access to a broader dynamic range, more excellent highlight and shadow retention, and more grading versatility.

The dynamic range and level of detail in images can be increased to their maximum with Canon Log 2. However, although Canon Log 2 allows for the most significant amount of post-production freedom and utilizes the sensor’s full dynamic range, it often takes significantly more time to fix colors.

Canon Log 3 offers an alternative for consumers searching for most benefits of using a Log workflow but with shorter turnaround times. In addition, this alternative has only a slightly lower dynamic range of 14 stops.

Modular Design

The EOS C300 Mark III’s new modular design allows productions to optimize and personalize the camera to meet their unique shooting requirements. In addition, attaching accessories and expansion units are simple, providing various degrees of capability. When fully outfitted with a massive zoom lens, FIZ unit, audio accessories, and rangefinder, and when stripped down and flown on a drone, the camera is at home in both configurations.

Recording in XF-AVC and Using Canon’s Cinema RAW Light

The EOS C300 Mark III is equipped with a sophisticated DIG! C DV7 image processing platform, enabling it to record Cinema RAW Light directly to two CFexpress cards already installed in the camera.

Cinema RAW Light maintains file sizes that are approximately one-third to one-fifth the size of Canon Cinema RAW while offering a dynamic range that can exceed 16 stops thanks to a technology known as Dual Gain Output (DGO). Additionally, Cinema RAW Light provides significant creative leeway for color grading. As a result, the Canon Cinema RAW Light codec offers an excellent balance of coding effectiveness and video quality.

A 4:2:2 10-bit Long GOP-based codec has been added to the standard Intra-based XF-AVC codecs. This was done to strike a compromise between the quality of the video and the amount of data it can store. This newly developed codec, based on Long GOP, has a data rate significantly lower than that of the traditional Intra codecs. Users can cut their media spending and more easily collaborate with cloud-based infrastructures thanks to a newly developed lightweight codec.

The new Canon XF-AVC codec is built into the EOS C300 Mark III Digital Cinema Camera. This codec enables 4K and 2K image data to be recorded internally onto CFexpress cards in workflow-efficient file sizes using advanced video compression. Additionally, this codec allows for recording image data at resolutions of up to 2K. The Canon EOS C300 Mark III can record in various frame rates using the XF-AVC codec, including up to 4K at 120 frames per second and 2K at up to 180 frames per second.

LCD Touchscreen Monitor with a 4.3-Inch Display on the LM-V2

The LM-V2 4.3″ LCD Monitor is a touch screen with roughly 2.76 million dots and an easy-to-view design. The monitor can be attached to the EOS C300 Mark III quickly and easily using the included accessories, and it can be positioned in various ways for optimal viewing.

The LCD monitor has the capability of displaying image framing in addition to providing visual confirmation of the camera settings. In addition, the display comes equipped with a control interface, making it simple to access and adjust the camera’s grounds.

4-Channel Audio Recording

The Canon EOS C300 Mark III can record audio in up to four channels. The camera’s internal microphone, its tiny mic port, and its XLR ports are all potential sources of audio input that can be routed to one of the four available audio channels. In addition, the Expansion Unit EU-V2 provides Support for four XLR ports, bringing the total number to two. Because of this versatility, various audio devices can be directly linked to the camera and blended on the device itself.

Support for Custom User LUTs

On the EOS C300 Mark III, users can upload and utilize user-created LUTs. AssignAssigningutput terminals, LCDs, and viewfinders are possible. As a re is possiblesult, different production roles have the opportunity to tailor the appearance of the image to meet their requirements. This is possible because clients can watch one LUT while production works from another.

Lens Mounts That Users Can swap Out

Lens mounts that are user-interchangeable and an available adapter for the B4 charger allow operators to make bold creative decisions depending on the subject matter of their photographs. The Canon EOS C300 Mark III arrives with an EF mount. However, the user may easily change this to a Locking EF (EF-C) or PL mount using one of the available adapters.

Simply removing four M3 hex screws from each mount makes it simple to switch between them. In addition, each mounting kit comes with a shim set that may be used to change the rear focus. This allows for pinpoint accuracy in focusing, which is essential for experts.

Support for an Anamorphic Lens

Thanks to the camera’s compatibility with both, cinematographers can use either a 2.0 or 1.33 anamorphic lens with the EOS C300 Mark III. As a result, iters can get the comprehensive, cinematic looks, oval bokeh, and stunning flares characteristic of anamorphic glass. Using this color scheme for your upcoming project, you may quickly get a particularly cinematic look.

Recording Done Through Proxy

While having a higher resolution, greater bit depths, and quicker frame rate all provide more adaptability and higher image quality, the file sizes created by these settings are significantly larger. By offering an alternative that requires less bandwidth for the first file sharing and preliminary cutting, proxy files have the potential to accelerate the editing process significantly.

The EOS C300 Mark III is equipped with Canon’s potent and high-speed DIGIC DV7 image processor, which makes it possible for the camera to record 2K Proxy files simultaneously. In addition, cinema RAW Light can be recorded to the internal CFexpress card, and an XF-AVC 2K 4:2:0 8-bit proxy can be recorded directly to an internal SD card. Both of these recording options are available. LUTs can also be applied to Canon C300 Mark III proxy recordings.

Stabilization of the Image Electronically

Built within the EOS C300 Mark III is the same five-axis electronic IS first introduced with the EOS C500 Mark II. This IS system is compatible with virtually every lens, including anamorphic lenses.

12G-SDI Support

The EOS C300 Mark III can output 4K resolution at up to 60 frames per second via a single BNC cable thanks to its Support for 12G-SDI.

Support for the RC-V100 and compatibility with LANC

The body of the EOS C300 Mark III features a remote A terminal (LANC), and it is compatible with remote B (RS-422) in both the expansion unit EU-V1 and the expansion unit EU-V2. The EOS C300 Mark III can be remote-operated using these connectors by using either a standard cable compatible with LANC or a serial connection, depending on the distance between the operator and the camera.

Canon EOS C300 Mark III Specifications


Lens MountCanon EF
Lens CommunicationYes, with Autofocus Support
Sensor ResolutionActual: 9.6 Megapixel (4206 x 2280)
Effective: 8.85 Megapixel (4096 x 2160)
Sensor Type26.2 x 13.8 mm (Super35) CMOS
Pixel Pitch6.4 µm
Image StabilizationNone
Built-In ND FilterMechanical Filter Wheel with 2 Stop (1/4), 4 Stop (1/16), 6 Stop (1/64), 8 Stop (1/256), 10 Stop (1/1024) ND Filters
Internal Filter HolderNo
Capture TypeStills & Video

Exposure Control

Shutter TypeElectronic Rolling Shutter
Shutter Speed1/2000 to 1/12 Second
ISO Sensitivity100 to 102,400
Gain-6 to 54 dB (Native)
-2 to 54 dB (Expanded)
Shutter Angle11.25 to 360°
Advertised Dynamic Range16 Stops
White Balance2000 to 15,000K
Presets: Custom 1, Custom 2, Daylight, Tungsten
Internal Recording ModesCinema RAW Light 10-Bit
4096 x 2160 at 24.00/25/29.97/50/59.94 fps [250 to 1000 Mb/s]
2048 x 1080 at 12/15/20/23.98/24.00/25/29.97/50/59.94 fps [250 to 1000 Mb/s]
1920 x 1080 at 12/15/20/23.98/24.00/25/29.97/50/59.94 fps [250 to 1000 Mb/s]
DCI 4K (4096 x 2160) at 23.98/24.00/25/29.97/50/59.94 fps
UHD 4K (3840 x 2160) at 23.98/24.00/25/29.97/50/59.94 fps
DCI 2K (2048 x 1080) at 23.98/24.00/25/50/50/59.94 fps
1920 x 1080p at 23.98/25/29.97/50/59.94 fps
1920 x 1080i at 50/59.94 fps
1280 x 720 at 50/59.94 fps
External Recording ModesHDMI
DCI 4K (4096 x 2160)
UHD 4K (3840 x 2160)
1920 x 1080p
1280 x 720
Sensor Crop ModesSuper16
2K (2048 x 1080)
Variable Frame RatesDCI 4K: 12 to 179.82 fps
UHD: 12 to 179.82 fps
DCI 2K: 12 to 179.82 fps
1080p: 12 to 179.82 fps
Gamma CurveCanon Log 2, Canon Log 3, HDR-HLG, HDR-PQ, Rec709, Wide DR
Recording LimitUnlimited
Built-In Microphone TypeMono
Audio Recording4-Channel 24-Bit 48 kHz LPCM Audio

Still Image Capture

Image File FormatJPEG


Media/Memory Card SlotDual Slot: CFexpress Type B (CFexpress 2.0)
Single Slot: SD/SDHC/SDXC
Video I/O1 x BNC (12G-SDI) Output
1 x BNC Output
1 x HDMI Output
Audio I/O2 x XLR 3-Pin Microphone (+48 V Phantom Power) Input
1 x 1/8″ / 3.5 mm TRS Stereo Microphone Input
1 x 1/8″ / 3.5 mm TRS Stereo Headphone Output
Power I/O1 x XLR 4-Pin (24 VDC at 2 A) Input
Other I/O1 x BNC (Timecode) Input/Output
1 x 2.5 mm Sub-Mini (LANC) Control Input
Global Positioning (GPS, GLONASS, etc.)None


Resolution2,760,000 Dot
Display TypeArticulating Touchscreen LCD


TypeOptional, Not Included


Focus TypeAuto and Manual Focus
Focus ModeAutomatic, Continuous-Servo AF, Manual Focus


Battery TypeCanon BP-A Series
Power Consumption>34 W
Accessory Mount1 x 1/4″-20 Female
1 x Cold Shoe Mount
Dimensions (W x H x D)6 x 5.8 x 6.6″ / 153 x 148 x 168 mm (Without Grip)
7.2 x 5.8 x 7.4″ / 183 x 148 x 189 mm (With Grip)
Weight3.86 lb / 1.75 kg (Body Only)
5.38 lb / 2.44 kg (With Grip, Handle, Monitor)

Packaging Info

Package Weight14.2 lb
Box Dimensions (LxWxH)18.5 x 14.5 x 12.6″

Canon EOS C300 Mark III Price

Canon EOS C300 Mark III FAQs

Is the Canon C300 a good camera?

The Canon C300 is an excellent camera for professional video production thanks to its high level of picture clarity, intuitive user interface, and numerous cutting-edge features.

Is Canon C300 Mark III Netflix approved?

The Canon C300 Mark III has been given the green light by Netflix and satisfies all of their requirements for recording their original material.

When did the Canon C300 Mark III come out?

The Canon C300 Mark III was made available to consumers in 2020.

How much is Canon C300 Mark III?

The Canon C300 Mark III can be purchased for anywhere between $10,000 and $13,000, with prices ranging from either end of this spectrum depending on the configuration and the retailer from which it is bought.

What image quality is Canon C300 Mark III?

The Canon C300 Mark III can record high-quality 4K video at up to 120 frames per second (fps) in 10-bit 4:2:2 color space. It is also compatible with Canon’s Cinema RAW Light format, providing even more post-production versatility.

Is Canon C300 Mark III a DSLR?

Contrary to popular belief, the Canon C300 Mark III is not a DSLR camera. Instead, it is a movie camera that was developed primarily for use in the production of videos.

How much power does Canon C300 Mark III use?

The Canon C300 Mark III is powered by a BP-A60 battery cell, delivering approximately 130 minutes of recording time in a continuous loop.

Does the Canon C300 Mark III have autofocus?

The Canon C300 Mark III comes equipped with Dual Pixel CMOS autofocus, renowned for its quickness and precision.

What is the maximum resolution of C300 Mark III?

The Canon C300 Mark III has a pixel count of 4096 by 2160 at its highest possible resolution.

Is the Canon C300 Mark III weather sealed?

Yes, the weather-sealing on the Canon C300 Mark III is top-notch, and the magnesium alloy frame of this camera is strong enough to withstand a wide range of challenging shooting circumstances.

How much does a C300 Mark III weigh?

The Canon C300 Mark III weighs approximately 3.9 pounds (1.8 kg) without attachments.



Joseph is a talented photographer and videographer based in the USA, with a thriving career as a freelance creative. Over the past several years, he has had the privilege of working with renowned brands, capturing captivating images and videos. His portfolio encompasses a diverse range of subjects, specializing in fashion, portrait, and lifestyle content creation. From editorial shoots to engaging social media videos, Joseph's versatile skills ensure exceptional visual storytelling in every project. Beyond his professional endeavors, he nurtures a personal passion for travel and nature photography, channeling his deep appreciation for the environment into a commitment to sustainability and environmental causes.

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