Best Memory Card for Blackmagic Design Cinema Camera 6K
Blackmagic Design’s Cinema Camera 6K brings high-end digital film capture to a wider audience. This camera features a full-frame 6K sensor for rich colors, accurate skin tones, and a wide dynamic range. It has an active Leica L lens mount compatible with modern and vintage full-frame lenses. The 6K sensor enables shooting in multiple formats like 3:2 open gate and 2.4:1 anamorphic widescreen up to 60fps. ENG users will appreciate the ability to simultaneously record Blackmagic RAW and H.264 proxies. Whether you’re a beginner or a seasoned pro, the Blackmagic Design Cinema Camera 6K puts high-end 6K digital filmmaking within reach. BMCC 6K has one memory card slot, supports CFexpress Type B memory cards. We have tested and reviewed late CFexpress Type B cards, and below are top recommended ones for Blackmagic Design Cinema Camera 6K:
For the absolute fastest speeds, the Lexar Professional CFexpress Type-B DIAMOND is my top pick. With blazing read/write speeds up to 1,900/1,700 MB/s, it can easily handle the data rate demands of 6K RAW recording. Lexar is a proven brand and this card has excellent performance. Downsides are its premium price and lack of VPG rating for sustained write speeds.
The Sony Tough CFexpress Type-B offers a great balance of speed, toughness, and value. With speeds up to 1,850/1,750 MB/s read/write, it provides ample performance for the camera’s needs. And with Sony’s reputation for reliability plus a durable, shockproof design, this card should keep working despite the rigors of video production. The price is also more affordable than other top-tier CFexpress cards.
For those on a budget, the Wise Advanced CFX-B provides decent 6K RAW recording speeds of 1,700/1,550 MB/s at a lower price point. The main tradeoff is consistency – sustained write speeds may drop lower during long takes. But for the price, it’s a viable option.
Ultimately, my top recommendation is the Sony Tough CFexpress Type-B. It delivers excellent, consistent performance for 6K RAW video on the Blackmagic Cinema Camera 6K at a reasonable price from a reliable brand. For no-compromise speeds, step up to the Lexar DIAMOND. And for a lower-cost alternative, check out the Wise Advanced card. But for most users, the Sony strikes the optimal balance of speed, toughness, value and reliability.
| Card | Max. Read Speed | Max. Write Speed | Check Price |
| Sony Tough CFexpress Type-B | 1,850 MB/s | 1,750 MB/s | Amazon/B&H/Adorama |
| Lexar Professional CFexpress Type-B DIAMOND | 1,900 MB/s | 1,700 MB/s | Amazon/B&H/Adorama |
| Sabrent Rocket CFX CFexpress Type B | 1,800 MB/s | 1,700 MB/s | Amazon/B&H |
| Delkin Devices POWER CFexpress Type B | 1,780 MB/s | 1,700 MB/s | Amazon/B&H |
| Delkin Devices BLACK CFexpress Type B | 1,725 MB/s | 1,530 MB/s | Amazon/B&H |
| Lexar Professional CFexpress Type-B Gold | 1,900 MB/s | 1,500 MB/s | Amazon/B&H/Adorama |
| ProGrade Digital CFexpress 2.0 Type B Cobalt | 1,700 MB/s | 1,500 MB/s | Amazon/B&H/Adorama |
| SanDisk Extreme Pro CFexpress Type-B | 1,700 MB/s | 1,400 MB/s | Amazon/B&H/Adorama |
| ProGrade Digital CFexpress 2.0 Type-B Gold | 1,700 MB/s | 1,500 MB/s | Amazon/B&H/Adorama |
| Wise Advanced CFX-B Series CFexpress | 1,700 MB/s | 1,050 – 1,550 MB/s | Amazon/B&H/Adorama |
| Hoodman Steel CFexpress | 1,700 MB/s | 1,400 MB/s | Amazon/B&H/Adorama |
| Lexar Professional CFexpress Type-B Silver | 1,750 MB/s | 1,300 MB/s | Amazon/B&H/Adorama |