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Canon EOS C300 Mark III Digital Cinema Camera Body (EF Lens Mount)

BH #CAC3003EF • MFR #3795C002
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Canon EOS C300 Mark III Digital Cinema Camera Body (EF Lens Mount)
Key Features
  • Super 35mm Dual Gain Output (DGO) Sensor
  • 4K 120p, 2K Crop 180p HDR
  • Cinema RAW Light and XF-AVC H.264 Codec
  • EF Lens Mount, DIG!C DV7 Image Processor
Create cinema-quality productions with the Canon EOS C300 Mark III Digital Cinema Camera, which features a Super 35mm Dual Gain Output sensor with up to 16 stops of high dynamic range capability for superior HDR recording and low noise. The EF lens mount offers compatibility not only with Canon's existing broad range of DSLR lenses but also with their line of EF-mount cinema prime, zooms, and even 2.0 and 1.33 anamorphic lenses. The mount is also interchangeable with a separately available PL mount by the end user.
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Canon C300 Mark III EF Mount Overview

From Manufacturer

Create cinema-quality productions with the Canon EOS C300 Mark III Digital Cinema Camera, which features a Super 35mm Dual Gain Output sensor with up to 16 stops of high dynamic range capability for superior HDR recording and low noise. The EF lens mount offers compatibility not only with Canon's existing broad range of DSLR lenses but also with their line of EF-mount cinema prime, zooms, and even 2.0 and 1.33 anamorphic lenses. The mount is also interchangeable with a separately available PL mount by the end user.

The sensor is paired with the Canon DiGIC DV7 image processor, which uses the sensor's raw information and processes it for various applications such as high frame rate recording, raw recording, HDR-PQ output, electronic image stabilization (EIS), and proxy recording. The camera records up to DCI 4K resolution video to dual CFexpress cards, and an SD card slot is available to record additional images. High frame rates up to 120 fps can be recorded in 4K raw, and up to 180 fps in 2K cropped mode. Canon's Cinema RAW Light and XF-AVC recording formats are supported, providing DCI 4K images with a 10-bit, 4:2:2 Long GOP codec. Proxy recording is also supported, which allows a significant boost to your post-production speed.

For more flexibility during post-production, the camera also offers Canon's Log 2 and Log 3 gamma modes, which results in excellent tonal reproduction in the highlight and low-light regions of an image, and an expanded dynamic range. The C300 Mark III also supports custom user LUTs that can be utilized on monitors, the LCD, or viewfinder to ensure the most accurate color. Canon's Dual Pixel CMOS AF (autofocus) support allows you to not only provide accurate autofocus, but it also features touch AF and face detection.

The camera features up to 12G-SDI output over a single BNC cable, timecode I/O, and genlock input BNCs. It supports up to 4-channel audio using the internal mic, mini-mic input, and XLR ports, and an expansion unit can be added to support up to four XLR inputs. The body has a modular design that can either be stripped down completely or be built up using the included handle, 4.3" rotating touchscreen LCD unit with full controls, grip, and thumb rest.

Canon Super 35 Dual Gain Output (DGO) Sensor
The EOS C300 Mark III features Canon's next-generation Super 35mm Dual Gain Output (DGO) Sensor. This new sensor is capable of dynamic ranges in excess of 16 stops and is compatible with Canon's exclusive Dual Pixel CMOS Autofocus technology. The DGO Sensor is a newly developed imaging system that generates high dynamic range and maintains low-noise levels by reading out each pixel with different gains. It combines images using pixels shot with a saturation-prioritizing amplifier for bright areas, and a lower-noise, noise-prioritizing amplifier for darker areas.
DIG!C DV7 Image Processor
The EOS C300 Mark III features Canon's DIG!C DV7 image processor that takes the extensive raw information captured from the imaging sensor and processes it for output. DiG!C is also the engine behind features such as high frame rate recording, Dual Gain Output (DGO) Sensor, Dual Pixel Autofocus, Cinema Raw Light Recording, HDR (PQ) output, Electronic Image Stabilization, and proxy recording.
Dual Pixel CMOS Autofocus with Touch AF and Face Detection
The Cinema EOS C300 Mark III features Canon's Dual Pixel CMOS AF Technology. For DAF, each pixel in the camera's CMOS sensor is configured with two photodiodes. Two independent image signals can then be detected at each photosite and compared using phase difference to provide autofocus with compatible lenses. DAF can survey the scene and recognize not only whether the subject is in focus or not, but in which direction (near or far), and by how much. DAF also powers the intuitive Focus Guide for users who prefer to focus manually but enjoy the positive feedback DAF provides through the guide interface.
High Frame Rate; 4K 120p and 2K CROP 180p
The EOS C300 Mark III is capable of ultra-high frame rates with its new chip design and DiG!C DV7 processor. Frame rates up to 120 fps can be obtained in 4K, while 2K CROP mode provides even greater flexibility with speeds up to 180 fps.
Canon Log 2 and 3 Gamma
The EOS C300 Mark III supports both Canon Log 2 and Canon Log 3 gamma. In post-production, Canon Log is designed to reproduce the entire tonal range that the CMOS image sensor is capable of. Log workflows provide the user with a higher dynamic range, more highlight and shadow retention, and more flexibility in grading.

Canon Log 2 provides the largest dynamic range and image detail. While Canon Log 2 provides the most post-production flexibility and full dynamic range of the sensor, it typically requires more time in color correction.

For users looking for most of the benefits of Log workflow, but with shorter turnaround times, Canon Log 3 provides an alternative with only a slightly reduced dynamic range of 14 stops.
Modular Design
A new modular design allows productions to optimize and customize the EOS C300 Mark III to specific shooting needs. Accessories and expansion units can be easily attached to provide different levels of functionality. The camera is equally at home fully rigged with a large zoom lens, FIZ unit, audio accessories, and rangefinder as it is stripped down flying on a drone.
Canon Cinema RAW Light and XF-AVC Recording
Thanks to the powerful DIG!C DV7 image processing platform, the EOS C300 Mark III can record Cinema RAW Light directly to two onboard CFexpress cards. Cinema RAW Light offers plenty of freedom for grading with a dynamic range that can exceed 16 stops with Dual Gain Output (DGO) technology while maintaining file sizes that are about 1/3 to 1/5 the size of Canon Cinema RAW. Canon Cinema RAW Light offers a great combination of codec efficiency and quality.

In addition to the conventional Intra-based XF-AVC codecs, a 4:2:2 10-bit Long GOP-based codec has been added with consideration for a balance of quality and data rates. This new Long GOP-based codec has a data rate that is less than half that of the conventional Intra codecs. This new lightweight codec makes it easier for users to reduce media costs and work with cloud-based infrastructures.

The EOS C300 Mark III Digital Cinema Camera incorporates the new Canon XF-AVC codec that allows 4K and 2K image data to be recorded internally onto CFexpress cards in workflow-efficient file sizes using advanced video compression. Using the XF-AVC codec, the EOS C300 Mark III can record a variety of frame fates up to 4K 120 fps and 2K up to 180 fps.
LM-V2 4.3" LCD Touchscreen Monitor
The LM-V2 4.3" LCD Monitor is an easy-to-view touch panel with approximately 2.76 million dots. The monitor easily attaches to the EOS C300 Mark III using included accessories and can be adjusted to different viewing positions. The LCD monitor is capable of displaying both image framing and visual confirmation of camera settings. Additionally, the display has a control interface to make it easy to access and change camera settings.
4-Channel Audio Recording
The EOS C300 Mark III supports up to 4-channel audio recording. Audio input from the camera's internal microphone, mini mic port, and XLR ports can be assigned to the four different audio channels. With the Expansion Unit EU-V2, a total of four XLR ports are supported. This flexibility allows for a wide range of audio devices to be connected and mixed directly on the camera.
Support for Custom User LUTs
Users can upload and apply custom LUTs to the EOS C300 Mark III. LUTs can be assigned to specific output terminals, LCD, and viewfinder. Clients can be viewing one LUT, while production works from another, giving different production roles the ability to customize the look of the image to their needs.
User-Interchangeable Lens Mounts
User-interchangeable lens mounts and an available B4 mount adapter gives operators the freedom to make bold creative choices based on the subject matter. The EOS C300 Mark III ships with an EF mount that can be user-swapped to an optional Locking EF (EF-C) or PL mount. Each mount swaps easily by simply removing four M3 hex screws. A shim set is provided with each mount kit in order to adjust back focus for the precision in focusing accuracy that professionals rely on.
Anamorphic Lens Support
The EOS C300 Mark III offers cinematographers support for the use of both 2.0 and 1.33 anamorphic lens types. Users can achieve the wide cinematic looks, oval bokeh, and striking flares particular to anamorphic glass. It is a distinctly cinematic palette that is within reach for your next project.
Proxy Recording
Higher resolution, greater bit depths, and faster frame rates provide versatility and greater image quality but come at the cost of much larger file sizes. Proxy files can greatly speed up the editorial process by providing a lower bandwidth alternative for initial file sharing and rough cutting.

Canon's powerful high-speed DIGIC DV7 image processor makes it possible for the EOS C300 Mark III to simultaneously record 2K Proxy files. Cinema RAW Light can be recorded to the internal CFexpress card, while an XF-AVC 2K 4:2:0 8-bit proxy can be recorded directly to an internal SD card. The C300 Mark III can also apply LUTs to Proxy recording.
Electronic Image Stabilization
The EOS C300 Mark III includes the same built-in five-axis electronic IS introduced with the EOS C500 Mark II that works with almost any lens, including anamorphic.
12G-SDI Support
Support for 12G-SDI allows for the EOS C300 Mark III to output 4K resolution up to 60p over a single BNC cable.
RC-V100 Support and LANC Compatible
The EOS C300 Mark III body has a remote A terminal (LANC) on the body and supports remote B (RS-422) in both expansion unit EU-V1 and EU-V2. Through these connectors, the EOS C300 Mark III can be completely remote-operated either by a standard LANC compatible cable or over longer distances through the use of a serial connection.
UPC: 013803318906

Canon C300 Mark III EF Mount Specs

Key Specs
Lens Mount
Canon EF
Image Sensor
Super35
Effective Sensor Resolution
8.85 Megapixel (4096 x 2160)
Image Stabilization
No
ISO/Gain Sensitivity
Native: 100 to 102,400
Gain: -6 to 54 dB (-2 to 54 dB Extended)
Max Recording Modes
Cinema RAW Light 10-Bit
Up to DCI 4K
XF-AVC
Up to DCI 4K
Max Video Output
Up to DCI 4K
Media/Memory Card Slot
Single Slot: SD/SDHC/SDXC
Dual Slot: CFexpress Type B (CFexpress 2.0)
Mobile App Compatible
No
Battery
Canon BP-A Series
Imaging
Lens Mount
Canon EF
Lens Communication
Yes: with Autofocus Support
Image Sensor
26.2 x 13.8 mm (Super35) CMOS
Effective Sensor Resolution
Effective: 8.85 Megapixel (4096 x 2160)
Actual: 9.6 Megapixel (4206 x 2280)
Image Stabilization
No
Built-In ND Filter
Mechanical 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 Holder
No
Capture Type
Stills & Video
Exposure Control
Shutter Type
Electronic Rolling Shutter
Shutter Speed
1/2000 to 1/12 Second
Shutter Angle
11.25 to 360°
ISO/Gain Sensitivity
Native: 100 to 102,400
Gain: -6 to 54 dB (-2 to 54 dB Extended)
Advertised Dynamic Range
16 Stops
White Balance
Range: 2000 to 15,000K
Presets: Custom 1, Custom 2, Daylight, Tungsten
Focus
Focus Mode
Automatic, Continuous-Servo AF, Manual Focus
Video Capture
Internal Recording
Cinema RAW Light 10-Bit
4096 x 2160
2048 x 1080
1920 x 1080

XF-AVC
4096 x 2160
3840 x 2160
1920 x 1080p
1920 x 1080i
2048 x 1080
1280 x 720
Video Output

4096 x 2160
3840 x 2160
1920 x 1080p
1280 x 720
Fast-/Slow-Motion Support
Yes
Gamma Curve
Canon Log 2, Canon Log 3, HDR-HLG, HDR-PQ, Rec709, Wide DR
Built-In Microphone
Mono
Audio Recording
4-Channel, 24-Bit at 48 kHz via LPCM Audio
Interface
Media/Memory Card Slot
Single Slot: SD/SDHC/SDXC
Dual Slot: CFexpress Type B (CFexpress 2.0)
Internal Storage
No
Video I/O
1x BNC (12G-SDI) Output
1x BNC (3G-SDI) Output
1x HDMI Output
Audio I/O
2x XLR 3-Pin Microphone Input on Camera Body (+48 V Phantom Power)
1x 1/8" / 3.5 mm TRS Stereo Microphone Input on Camera Body
1x 1/8" / 3.5 mm TRS Stereo Headphone Output on Camera Body
Power I/O
1x XLR 4-Pin (24VDC at 2 A) Input
Other I/O
1x BNC (Timecode) Input/Output
1x 2.5 mm Sub-Mini (LANC) Control Input
Wireless
Wi-Fi
*Via Optional Adapter
Mobile App Compatible
No
Global Positioning (GPS, GLONASS, etc.)
No
Monitor
Display Type
Primary Monitor: Articulating 4.3" Touchscreen LCD
Viewfinder
Type
Optional, Not Included
Power
Battery
Canon BP-A Series
Power Consumption
>34 W
General
Shoe Mount
1x Cold Shoe
1x Cold Shoe on Included Handle
Accessory Mounting Thread
8x 1/4"-20 on Camera Body
6x 1/4"-20 on Included Handle
Netflix Approved
Yes
Dimensions (W x H x D)
7.2 x 5.8 x 7.4" / 183 x 148 x 189 mm (With Grip)
6 x 5.8 x 6.6" / 153 x 148 x 168 mm (Without Grip)
Weight
3.86 lb / 1.75 kg (Body Only)
5.38 lb / 2.44 kg (With Grip, Handle, Monitor)
Packaging Info
Package Weight
14 lb
Box Dimensions (LxWxH)
18.5 x 14.5 x 12.6"

Canon C300 Mark III EF Mount Reviews

Unreal Cinematic Value — A $10,999 Cinema Beast for $2,999

By Benjamin
Rated 5 out of 5
Date: 2026-05-11

I was lucky enough to snag this absolutely unreal deal from B&H for $2,999 before the sale ended on April 27th, 2026. I found out about the sale thanks to an article published by NewsShooter, and honestly, I still can’t believe it happened. This camera launched in April 2020 for $10,999, so getting it at this price felt almost impossible. A true once-in-a-decade type of deal. The Canon C300 Mark III is simply one of the most cinematic digital cinema cameras Canon has ever made. The Dual Gain Output (DGO) sensor is the real deal. The image has incredibly smooth highlight roll-off, organic skin tones, beautiful dynamic range, and a softness that feels much more “cinema” than “digital.” I completely understand why so many people compare this camera favorably to the ARRI Alexa line. Speaking of the Alexa, I currently use CineMatch with the C300 Mark III, which allows me to match the Canon footage to ARRI Alexa LogC. From there, I can do a simple Rec709 conversion and get an incredibly rich, cinematic image right out of the box. Once converted to Alexa LogC, I can also use many of the top cinematic LUTs and film emulation LUT packs designed specifically for ARRI cameras. The results are honestly shocking. I updated the camera to the latest firmware and unlocked RAW HQ, RAW ST, and RAW LT. I have mostly been shooting in RAW LT at 12-bit, and the image quality is incredible while still keeping file sizes manageable. The XF-AVC codec is also surprisingly excellent. In many situations, especially for YouTube, interviews, and talking-head content, XF-AVC in 10-bit is more than enough. The difference between RAW and XF-AVC is definitely there, especially when pixel peeping highlights and tonal transitions, but for most real-world uses the XF-AVC codec still looks phenomenal. Most people would never notice the difference. The camera also has extremely clean preamps. I pair mine with a Sennheiser MKH 416 shotgun microphone and the audio quality is excellent. Even though Canon seems to be moving away from EF mount systems, this turned out to be a huge advantage for me because there are still many incredible EF lenses available at excellent prices. I paired this camera with a Canon EF 24mm f/1.4L II USM lens, and the combination is stunning. Shooting wide open at f/1.4 still produces a sharp image with beautiful shallow depth of field, even on Super 35. For rigging, I’m currently using a Zacuto top cheese plate, a Tilta Advanced Right Side Wooden Handle with an ARRI rosette quick-release system, and a compact monitor mounting arm setup (Wooden Camera Mini Monitor Hinge for Canon C300 Mark III and C500 Mark II) that works beautifully for studio shooting. One thing that really surprised me is how cinematic even the HD modes look. Canon’s downsampling and color science are just excellent. The camera does not have that overly sharp “video” look. Instead, it produces a softer, more organic image that feels expensive and cinematic. Also important: the DGO technology still works in normal frame rates such as 23.98 and 29.97 fps, including XF-AVC recording modes. That means even the compressed codecs retain much of the beautiful highlight roll-off and tonal richness this sensor is known for. Overall, I could not be happier with this purchase. The C300 Mark III is a true cinema camera in every sense of the word. Paired with CineMatch, quality lenses, and good lighting, the image quality is astonishingly close to cameras costing dramatically more. Depending on the configuration, ARRI Alexa systems can cost tens of thousands of dollars, yet this camera delivers a genuinely cinematic image that competes far above its current market price. This camera is an absolute monster, and at $2,999, it may genuinely be one of the greatest cinema camera deals ever.

Buy it while they’re still ava

By Leonard
Rated 5 out of 5
Date: 2026-05-03

I can’t remember if this was 16k or 14k when it first came out, but for it to be available at the price they’re selling right now it’s insane. 4k camera with a great sensor that makes a beautiful clean image (even in low light), ef mount, and reasonably priced media (which went up a bid now because of some crisis)? Pair this camera with the evf V70 viewfinder (a real viewfinder with camera controls on it so you can make changes without removing your eye) and the 18-80 T4.4 lens and you have a great old school shoulder ENG camera for news and documentary work. Latest software even added a cropping option so with the push of a button that 80 can become a 160? I’ve had Fx9s and have Fx6s but for run and gun, this is my go to.

See any errors on this page?

What are the best options for a D-box to mount on ...

What are the best options for a D-box to mount on rails at the back of the camera? I'm using Gold Mount batteries.
Asked by: Patrick
the best way to mount anything would be using a base plate and rods
Answered by: Sean
Date published: 2020-09-23

Reviews mention it can shoot 4K 120fps. But the ...

Reviews mention it can shoot 4K 120fps. But the specs here on B&H say only goes up to 59.94fps. Does it shoot 120fps in 4K, and if so what codecs (RAW, 4:2:2, or 4:2:0)?
Asked by: john
This is misleading. Note how Canon includes the terms "High Frame Rate" or "up to" whenever they mention 4k 120fps. If the C300 did in fact capture 4k 120fps as a standard setting, it would appear under one of the recording modes.
Answered by: rafael
Date published: 2021-02-07

WHich 4 Pin XLR AC Adapter is used for the Canon ...

WHich 4 Pin XLR AC Adapter is used for the Canon c300 mark lll? would be nice if there was a link. Can't even find it on Canon's website
Asked by: Jimmy
After I purchased the camera I went through the same process. I weighed options with one of the B&H employees in the video department and we decided on the IndiPRO Tools 12V Power Supply with 4-Pin XLR Connection model available in store. We even plugged it into the floor model C300 mk iii to check it worked as intended. Had no issues with it so far.
Answered by: Jake
Date published: 2025-08-16

What is a recommended v-mount battery plate for ...

What is a recommended v-mount battery plate for the C300 mkiii?
Asked by: James
The Canon EU-V2 Expansion Unit 2 gives you a V-Mount battery plate, BH #CAEUV2. Or you can look at something like the Wooden Camera Battery Slide for C300 Mark III and C500 Mark II (V-Mount), BH #WO282300. BH #CAEUV2 - https://bhpho.to/3aec0tC BH #WO282300 - https://bhpho.to/2KnLzGW
Answered by: Joe P
Date published: 2020-12-15

Do EF-S lenses work on the C300 Mark III? ...

Do EF-S lenses work on the C300 Mark III? Specifically the Canon EF-S Zoom 17 - 55mm f/2.8 IS USM? Would it vignette? If yes then can that be corrected with Peripheral illumination?
Asked by: William
Yes they are fully compatible with the C300 Mark III. EF-S lenses will not vignette on the C300 Mark III.
Answered by: jabarih
Date published: 2021-08-04

Thanks for your previous answer and ...

Thanks for your previous answer and recommendation. Further more, when shooting XF-AVC 10 bit 4K, for how long can I shoot on a 128 Gb card?
Asked by: Ikechi
That all depends on the setting. If you are recording at 160 Mbps, you'd get around 105 minutes on a 128GB. If you are shooting at 800 Mbps you'd get closer to 20 minutes on a 128GB.
Answered by: Joe P
Date published: 2020-11-05

Can you use the eye cup - viewfinder - and the ...

Can you use the eye cup - viewfinder - and the supplied canon monitor at the same time?
Asked by: Michael
The viewfinder and the LCD monitor can be used together
Answered by: Sean
Date published: 2020-08-17

Does this camera work easily with the Ronin-S ...

Does this camera work easily with the Ronin-S gimbal?
Asked by: Larry
No, not the most friendly camera to balance on Ronin s unit. I would suggest the following units for a better end-user experience and can support a heavier payload of 14lbs. Zhiyun-Tech CRANE 3S PRO Handheld Stabilizer https://bhpho.to/3j1Ntfm
Answered by: hectorm
Date published: 2021-08-19
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