Why the Voigtländer 128GB UHS-II for the Sony α7 IV?
The Sony α7 IV records 4K video and shoots continuous bursts at up to 10 fps. To keep up, you need a card that can sustain high write speeds without stuttering. The Voigtländer Prof. High-Speed SDXC 128GB UHS-II is built for exactly that workload: it is described as ultra-fast and suitable for 4K video and rapid burst photography. Its 128 GB capacity gives you room for several thousand RAW frames or hours of 4K footage before you need to offload.
What the catalog confirms about this card
- Voigtländer Prof. High-Speed SDXC 128GB UHS-II: Ultraschnell und sicher. Perfekt für 4K-Videoaufnahmen und schnelle Serienfotografie. This directly matches the α7 IV's demanding recording modes, so you can rely on the card during fast-paced shoots.
Voigtländer Prof. High-Speed SDXC 128GB UHS-II - Voigtländer Prof. High-Speed SDXC 128GB UHS-II: Besonders strapazierfähig schock-, stoß- und vibrationsfest. Wasserfest bis zu einer Wassertiefe von 1 m (ca. 1 Std. lang). Temperaturgeschützt bis -25° C. Field photographers often shoot in rain or cold. The card's water and temperature resistance protect your data without needing a special housing.
Setting up the Voigtländer 128GB on the α7 IV
These steps assume you have the card and a Sony α7 IV body. No special tools are needed.
- 1. Insert the card: Open the memory card door on the right side of the α7 IV. Slide the Voigtländer 128GB UHS-II card into Slot 1 (the top slot supports UHS-II speeds). Push until it clicks.
- 2. Format the card in the camera: Go to Menu → Setup → Format. Select the card in Slot 1 and confirm. Formatting with the camera ensures the file system matches the α7 IV's expectations and clears any previous data.
- 3. Choose your recording settings: For 4K video, set File Format to XAVC S 4K and select a bitrate such as 60 Mbps or 100 Mbps. For stills, set the drive mode to Continuous High and choose RAW or RAW+JPEG. The card's UHS-II interface can handle these data rates without buffer delays.
What the catalog does not confirm
The catalog does not specify exact read/write speeds in MB/s, nor does it list sustained write performance for long clips. While the card is labeled for 4K video and fast bursts, the actual speed class (e.g., V60 or V90) is not provided in the available information. If you need a guaranteed minimum write speed for a specific codec, check the card's packaging or manufacturer specifications before relying on it.
