Best Memory Cards for Canon EOS C300 Mark III
Here are the best memory cards for Canon EOS C300 Mark III cinema camera, including UHS-II SD cards and CFexpress cards (Type B).
The Canon EOS C300 Mark III cinema camera has three memory card slots: 1 x UHS-II SDXC Card Slot and 2 x CFexpress Card Slots (Type B). The Canon EOS C300 Mark III (B&H, Adorama) 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, and it employs a modular design and an interchangeable lens mount optional accessory that allows users to easily customize the camera according to the needs of each project, making it an ideal tool for a wide range of video content production. 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.
Below is our full list of top recommended UHS-II SD cards and CFexpress cards for the Canon EOS C300 Mark III cinema camera. Hope it can help you get the best out of your Canon EOS C300 Mark III camera.
Recommended SD Memory Cards for Canon EOS C300 Mark III
The Canon EOS C300 Mark III has one UHS-II-compatible SD card slot. Offering maximum read speeds of up to 300 MB/s and maximum write speeds of up to 299 MB/s, the Sony SF-G Tough Series UHS-II SD card is currently the world’s fastest SD card on the market, and it is well-suited for video capture, including 8K, 4K XAVC S, 60p AVCHD, 3D, HFR, and Full HD video, as well as super fast continuous shooting. In addition, Kingston, Lexar, SanDisk, ProGrade Digital, Delkin Devices also released their super fast UHS-II SD cards, which are excellent choices for Canon EOS C300 Mark III cinema camera. You can just choose the one you like!
| UHS-II SD Card | Max. Read Speed | Max. Write Speed |
| Sony SF-G Tough UHS-II SD Card (V90) | 300 MB/s | 299 MB/s |
| Kingston Canvas React Plus UHS-II SD Card (V90) | 300 MB/s | 260 MB/s |
| Lexar Professional 2000x UHS-II Card (V90) | 300 MB/s | 260 MB/s |
| SanDisk Extreme PRO UHS-II Card | 300 MB/s | 260 MB/s |
| ProGrade Digital UHS-II SDXC Card (V90) | 300 MB/s | 250 MB/s |
| Delkin Devices Power UHS-II SDXC Card (V90) | 300 MB/s | 250 MB/s |
| Sony SF-M Tough UHS-II SDXC Card (V60) | 277 MB/s | 150 MB/s |
| Lexar Professional 1667x UHS-II SD Card (V60) | 250 MB/s | 90 MB/s |
Recommended CFexpress Memory Cards for Canon EOS C300 Mark III
The Canon EOS C300 Mark III has 2x CFexpress (Type B) card slots. The CFexpress card (Type B) is currently the fastest and the most capable memory card format on the market. Sony, Delkin Devices, SanDisk, ProGrade Digital, Lexar and others have already released their CFexpress memory cards. Offering fast read speeds up to 1700 MB/s along with write speeds up to 1480 MB/s, the Sony TOUGH CFexpress Type B Memory Card is one of fastest memory cards around, and it is ideal for recording a variety of video resolutions, bit-rates, and compressions, as well as uncompressed continuous RAW shooting of fast-moving action such as motorsports and wildlife. You can also see the full list of our top recommended CFexpress cards for Canon EOS C300 Mark III below – any of these make for a good choice. Overall, we highly recommend the Sony TOUGH CFexpress as the top best CFexpress cards for most people.
| CFexpress Card | Max. Read Speed | Max. Write Speed |
| Sony TOUGH CFexpress Memory Card Type B | 1700 MB/s | 1480 MB/s |
| SanDisk Extreme PRO CFexpress Card Type B | 1700 MB/s | 1200 – 1400 MB/s |
| Delkin Devices CFexpress POWER Card | 1700 MB/s | 1,400 MB/s |
| Hoodman 256GB Steel CFexpress Card | 1700 MB/s | 1,400 MB/s |
| ProGrade Digital CFexpress 2.0 Cobalt Card | 1600 MB/s | 1,400 MB/s |
| Wise Advanced CFX-B Series CFexpress Card | 1700 MB/s | 1050 – 1550 MB/s |
| Lexar Professional CFexpress Type-B Card | 1750 MB/s | 1,000 MB/s |
| ProGrade Digital CFexpress 2.0 Gold Card | 1700 MB/s | 1,400 MB/s |