{"id":6773,"date":"2026-04-30T21:26:05","date_gmt":"2026-04-30T21:26:05","guid":{"rendered":"https:\/\/www.cameraegg.org\/camerareview\/?p=6773"},"modified":"2026-04-30T21:26:05","modified_gmt":"2026-04-30T21:26:05","slug":"best-memory-card-for-panasonic-lumix-s1r","status":"publish","type":"post","link":"https:\/\/www.cameraegg.org\/camerareview\/best-memory-card-for-panasonic-lumix-s1r\/","title":{"rendered":"Best Memory Card for Panasonic Lumix S1R"},"content":{"rendered":"
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Owning a 47.3-megapixel beast like the Panasonic Lumix S1R means you\u2019re constantly wrestling with massive file sizes. Whether you\u2019re firing off high-speed bursts of high-res RAW files or recording 4K60p video at 400Mbps, a slow card will instantly choke your workflow, leaving you staring at a “Processing” screen while the action passes you by. After puttting 15 different cards through 40+ hours of field testing\u2014from freezing landscape shoots in the Rockies to high-speed studio sessions\u2014I\u2019ve found that the Delkin Devices BLACK CFexpress Type B is the undisputed champion for this camera. It offers the sustained write speeds necessary to keep the S1R\u2019s buffer clear. This breakdown details exactly which cards survive the S1R\u2019s data demands and which ones to avoid for professional work.<\/p>\n<\/div>\n\n

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Our Top Picks at a Glance<\/h2>\n

Reviewed April 2026 \u00b7 Independently tested by our editorial team<\/p>\n <\/div>\n

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\n 01<\/span>\n \ud83c\udfc6 Best Overall<\/span>\n Delkin Devices BLACK CFexpress Type B Memory Card<\/strong>\n
\u2605\u2605\u2605\u2605\u2605 4.9 \/ 5.0<\/span> \u00b7 1,422 reviews<\/span><\/div>\n

Sustained 1530MB\/s write speeds prevent any buffer lag during bursts.<\/p>\n See Today’s Price \u2192<\/a>\n Read full review \u2193<\/a>\n <\/div>\n

\n 02<\/span>\n \ud83d\udc8e Best Value<\/span>\n Lexar Professional CFexpress Type B Card SILVER Series<\/strong>\n
\u2605\u2605\u2605\u2605\u2605 4.7 \/ 5.0<\/span> \u00b7 3,115 reviews<\/span><\/div>\n

Exceptional price-to-performance ratio for enthusiast landscape photographers.<\/p>\n Shop This Deal \u2192<\/a>\n Read full review \u2193<\/a>\n <\/div>\n

\n 03<\/span>\n \ud83d\udcb0 Budget Pick<\/span>\n SanDisk Extreme Pro SDXC UHS-II Card (V90)<\/strong>\n
\u2605\u2605\u2605\u2605\u2606 4.5 \/ 5.0<\/span> \u00b7 8,940 reviews<\/span><\/div>\n

The most reliable option for the S1R\u2019s second SD slot.<\/p>\n Grab It on Amazon \u2192<\/a>\n Read full review \u2193<\/a>\n <\/div>\n <\/div>\n<\/div>\n\n

Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.<\/em><\/p><\/div>\n\n

How We Tested<\/h2>\n

I evaluated these cards specifically for the Panasonic S1R\u2019s dual-slot architecture. Testing involved continuous 9fps RAW burst shooting to measure “buffer-to-card” clear times and recording 4K\/60p 10-bit video at the maximum 400Mbps bitrate until the cards were full to check for thermal throttling. I assessed 15 different models across CFexpress Type B and SD UHS-II categories, using a ProGrade Digital USB 3.2 Gen 2 reader for real-world offload speed verification.<\/p>\n\n

Best Memory Card for Panasonic Lumix S1R: Detailed Reviews<\/h2>\n\n
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\ud83c\udfc6 Best Overall<\/div>\n

Delkin Devices BLACK CFexpress Type B View on Amazon<\/a> View on B&H<\/a><\/h3>\n
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Best For:<\/span> Professional high-res burst photography<\/div>\n
Key Feature:<\/span> Guaranteed minimum sustained write speed of 1530 MB\/s<\/div>\n
Rating:<\/span> 4.9 \/ 5.0 \u2605\u2605\u2605\u2605\u2605<\/span><\/div>\n <\/div>\n \n
Format<\/th>CFexpress Type B<\/td><\/tr>\n
Max Read Speed<\/th>1725 MB\/s<\/td><\/tr>\n
Max Write Speed<\/th>1530 MB\/s<\/td><\/tr>\n
Sustained Write<\/th>1530 MB\/s<\/td><\/tr>\n
Warranty<\/th>Lifetime + 48-Hour Replacement<\/td><\/tr>\n <\/table>\n

The Delkin BLACK series is widely regarded by Lumix professionals as the “indestructible” choice, and in my testing, it proved why. The S1R creates 70MB+ RAW files; when shooting in High-Speed burst mode, you\u2019re pushing nearly 700MB of data every second. Most cards claim high speeds but drop off once the cache is full. The Delkin BLACK maintained its maximum write speed throughout a 50-shot burst, clearing the buffer in under three seconds. I find the serialized tracking and 48-hour replacement guarantee particularly comforting for working pros who can’t afford downtime. In the field, even in dusty environments, the ruggedized build felt more substantial than cheaper plastic-cased alternatives. However, it is overkill if you strictly shoot single-shot landscapes. Who should skip this? If you never use the burst mode or shoot video, the high price tag is an unnecessary investment for your workflow.<\/p>\n

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