The Panasonic LUMIX S1 II is a 24.1 megapixel full-frame mirrorless camera that features dual memory card slots.
Slot 1 is compatible with CFexpress Type B (2.0 / 4.0) up to 2TB in size, and slot 2 is compatible with SD/SDHC/SDXC (UHS-II / UHS-I) cards up to 512GB in size.
For recording in a bitrate of 600 Mbps or less an SDXC V90 memory card is sufficient. For 800 Mbps a CFexpress card is required. For recording in Apple ProRes in anything other than FHD a CFexpress card is also required.
For the best dual slot performance we recommend recording RAW to slot 1 (CFexpress) and JPEG to slot 2 (UHS-II). We also recommend choosing one of the faster SDXC UHS-II V90 cards.
Recommended CFexpress Type B Cards
Our top recommended CFexpress Type B cards based on speed and reliability for the LUMIX S1 II are:
| CFexpress Type B Memory Card | Min Sustained Write Speed | Max Write Speed | Max Read Speed | Video Rating | CFexpress Standard |
|---|---|---|---|---|---|
| Delkin Devices BLACK 4.0 | 2040 MB/s | 3200 MB/s | 3600 MB/s | VPG400 | 4.0 |
| Delkin Devices POWER 4.0 | 820 MB/s | 3240 MB/s | 3650 MB/s | NA | 4.0 |
| Angelbird AV PRO SE v4 | 1050 MB/s | 1100 MB/s | 3700 MB/s | NA | 4.0 |
| SanDisk PRO-CINEMA | 1400 MB/s | 1500 MB/s | 1700 MB/s | NA | 2.0 |
| Lexar Professional DIAMOND 4.0 | 3200 MB/s | 3400 MB/s | 3700 MB/s | VPG400 | 4.0 |
| Nextorage NX-B2 PRO | 3400 MB/s | 3600 MB/s | 3900 MB/s | VPG400 | 4.0 |
| Delkin Devices POWER G4 | 805 MB/s | 1700 MB/s | 1780 MB/s | NA | 2.0 |
| Lexar Professional GOLD 4.0 | 3000 MB/s | 3300 MB/s | 3600 MB/s | NA | 4.0 |
| Lexar Professional SILVER 4.0 | 2600 MB/s | 3000 MB/s | 3600 MB/s | NA | 4.0 |
| ProGrade Digital 4.0 Gold | 850 MB/s | 3000 MB/s | 3400 MB/s | NA | 4.0 |
| Sony CEB-G | NA | 1600 MB/s | 1850 MB/s | NA | 2.0 |
| SanDisk Extreme PRO | NA | 1200 MB/s | 1700 MB/s | NA | 2.0 |
Recommended UHS-II SDXC Cards
Our top recommended UHS-II SDXC cards based on speed and reliability for the LUMIX S1 II are:
| UHS-II Card | Max Write Speed | Max Read Speed | Video Speed Class |
|---|---|---|---|
| SanDisk Extreme Pro | 300 MB/s | 300 MB/s | V90 |
| Lexar Professional GOLD 2000X | 260 MB/s | 300 MB/s | V90 |
| Delkin Devices BLACK | 250 MB/s | 300 MB/s | V90 |
| Delkin Devices Power | 250 MB/s | 300 MB/s | V90 |
| Nextorage NX-F2PRO | 299 MB/s | 300 MB/s | V90 |
| Angelbird AV PRO SD (MK2) | 280 MB/s | 300 MB/s | V90 |
| Sony SF-G Tough | 299 MB/s | 300 MB/s | V90 |
| OWC Atlas Ultra | 250 MB/s | 300 MB/s | V90 |
| Lexar Professional GOLD 1800x | 210 MB/s | 280 MB/s | V60 |
| Nextorage NX-F2SE Series | 100 MB/s | 280 MB/s | V60 |
FAQs
What is the maximum size CFexpress Type B card supported by the Panasonic LUMIX S1 II?
The LUMIX S1 II supports CFexpress Type B cards up to 2TB in size.
What is the difference between CFexpress Type B 2.0 and 4.0?
The main difference is speed. CFexpress Type B 4.0 cards utilize the PCIe Gen 4 bus which delivers twice the bandwidth (up to 4 GB/s) compared to CFexpress 2.0 Type B cards that utilize the PCIe Gen 3 bus (up to 2 GB/s).
CFexpress Type B 4.0 cards are backward compatible with CFexpress 2.0 devices, meaning a 4.0 card will work in a 2.0 camera or reader, but the performance will be limited to CFexpress 2.0 speeds. Similarly, a CFexpress 2.0 card will perform at its peak in a CFexpress 4.0 device.
What is the difference between UHS-I and UHS-II memory cards?
UHS-II offers much faster speeds (up to 312 MB/s) compared to UHS-I (up to 104 MB/s). This is possible via a second row of pins and two data lanes for simultaneous upstream and downstream data transfer. The extra row of pins are visible on the back of UHS-II cards. Both card types are backward compatible, but a UHS-II card will only operate at UHS-I speeds in a camera that only supports UHS-I cards.
What is the difference between SDHC and SDXC memory cards?
SDHC cards are formatted using the FAT32 file system which is limited to a maximum file size of 4GB. So when recording video clips, the clip will be split every 4 GB but playback with the camera will be seamless. SDXC cards use the exFAT file system which supports a maximum file size of 16 exabytes (EB), so video clips will not be split. SDHC cards support capacities of between 2-32GB and SDXC cards support 64GB-2TB.
Are CFexpress Type A cards compatible with the LUMIX S1 II?
No. The Panasonic LUMIX S1 II is not compatible with the physically smaller CFexpress Type A cards, only CFexpress Type B cards are supported in slot 1 and SD/SDHC/SDXC (UHS-II/UHS-I) cards in slot 2.
Where can I find the LUMIX S1 II specifications?
The LUMIX S1 II specifications can be found on Panasonic's website.
