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Sony AXS
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Sony AXS

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Sony's proprietary SSD storage system with 68-pin connector for 4K RAW recording, primarily used in F65 cinema cameras.

Technical Details

AXS cards are based on SSD technology with a proprietary 68-pin connector. The cards measure 129 × 106 × 17 mm and weigh approximately 250 grams. Sony produced three main variants: AXS-A512S24 (512 GB), AXS-A1TS24 (1 TB), and the later introduced AXS-A2TS24 (2 TB). The AXS-R7 External Recorder can write to two cards in parallel, achieving combined data rates of up to 4.8 GB/s. The cards operate within a temperature range of -10°C to +65°C and can withstand drops from a height of 1.5 meters.

History & Development

Sony introduced the AXS system in February 2013 along with the F65 CineAlta to handle the enormous data stream of uncompressed 4K RAW footage. In 2014, the external AXS-R5 recorder followed, and in 2016, the more compact AXS-R7. Starting in 2017, Sony expanded compatibility to the FX9 and other professional cameras. The system reached its peak around 2018 but was increasingly replaced by CFexpress Type B and internal NVMe storage from 2020 onwards.

Practical Use in Film

Productions such as "The Amazing Spider-Man 2" and "Guardians of the Galaxy" used Sony F65 cameras with AXS storage for 4K RAW recording. The typical workflow involves recording to AXS cards, transferring via the AXS-CR1 Card Reader (Thunderbolt 3, up to 10 Gb/s), and archiving to LTO tapes. For 4K RAW 16-bit, approximately 7.5 GB of footage is generated per minute. Advantage: Lossless recording without compression. Disadvantage: High acquisition costs of over 3,000 Euros per 1TB card and a proprietary format without third-party support.

Comparison & Alternatives

AXS primarily competed with RED Mini-Mags and Codex memory cards. While RED focused on compression, Sony offered true RAW without quality loss. Modern CFexpress Type B cards achieve similar speeds (up to 1.7 GB/s) at significantly lower costs and with open standards. Sony itself migrated newer cameras like the FX6 and FX3 to CFexpress. AXS remains relevant for existing F65/F55 installations and archive projects but is considered a phasing-out technology.

From the crafts

Perspectives

Cinematographer

Als DoP schätze ich die AXS-Karten für ihre absolute Zuverlässigkeit bei langen Takes und die verlustfreie 4K-RAW-Qualität, die mir maximale Flexibilität in der Postproduktion gibt. Die hohen Datenraten bedeuten allerdings, dass ich genau kalkulieren muss – bei einer 90-minütigen Dokumentation benötige ich mindestens 6-8 Karten à 1TB, was die Logistik am Set kompliziert macht.

Director

Für mich bedeutet AXS-Recording absolute Sicherheit bei kritischen Szenen, da ich weiß, dass jedes Detail in höchster Qualität erfasst wird und mein Colorist später jeden Nuance herausholen kann. Die Gewissheit, dass bei emotionalen Höhepunkten oder aufwendigen Actionsequenzen keine Kompressionsartefakte die Performance beeinträchtigen, rechtfertigt den technischen Aufwand – auch wenn ich mehr Pausen für Kartenwechsel einplanen muss.

Producer

AXS-Karten kosten mich etwa 3.000 Euro pro TB bei Anschaffung, plus täglich 150 Euro Leihgebühr für den Recorder – das summiert sich bei einer 30-Drehtage-Produktion auf über 25.000 Euro nur für Speicher. Dafür erhalte ich aber Versicherungssicherheit durch die bewährte Technologie und kann Postproduction-Kosten durch die perfekte Bildqualität minimieren, da weniger Nachbearbeitung nötig ist.

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