Device · OM System

OM System OM-1

verified 2026-10-07 Specs from OM System OM-1 product page (technical specifications). Also known as: om system om-1, omsystem om-1, om digital om-1.

Specs

sensorMFT
lens mountmicro-four-thirds
batteryom-system-blx-1
card slotssd-uhs-ii; sd-uhs-ii

Takes

  • lens mount Micro Four Thirds mount
    Open lens mount shared by Panasonic LUMIX G and OM System/Olympus bodies.
  • battery OM System BLX-1
    OM System battery introduced with the OM-1.
  • memory card SD / SDHC / SDXC (UHS-II slot)
    SD card slot with the second row of pins for UHS-II speeds.

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Good to know
  • Sigma and other third-party lenses are sold in several mounts; buy the Micro Four Thirds version.
  • Not the same as the older Olympus BLH-1 used by the E-M1 Mark II/III.
  • UHS-I cards work in UHS-II slots at UHS-I speed; high-bitrate video modes may need a V60/V90 UHS-II card.

What fits the OM System OM-1?

2 parts and accessories in the graph work with this model. OEM parts first.

battery

lens mount

Informational only. Confirm with the manufacturer before buying or installing. Spotted a mistake? Report it.