OM SYSTEM OM-1 Mark II Mirrorless MFT (Micro Four Thirds) Camera Body, Black {20.4MP}

OM System OM-1 Mark II: MFT's speed and weather flagship.

The 20.4MP stacked BSI Live MOS sensor paired with the TruePic X processor makes the OM-1 Mark II the most capable body OM System has built. The 2x crop factor effectively doubles your focal reach, a 400mm lens frames like a 800mm equivalent, which is exactly why this system earns its reputation in wildlife and bird photography. The 1,053-point all-cross-type AF with AI subject detection tracks birds, animals, motorsport vehicles, and humans, even when partially obscured or in profile.

Burst shooting tops out at 120 fps with the electronic shutter in Pro Capture mode, which begins buffering frames at the half-press so you're already recording before you consciously react. The buffer holds approximately 213 RAW frames at that speed. For handheld work, 8.5 stops of 5-axis IBIS means a 400mm shot at 1/15 second is genuinely on the table. The IP53 splash and dustproof rating, combined with freeze-proof operation to -10°C, means the body goes where the subject is regardless of conditions.

Video shooters get DCI 4K at up to 59.94 fps internally with no recording time limit, RAW 12-bit output over HDMI for an external recorder, and OM-Log for grading latitude. The Live GND computational photography function, a world first, lets landscape shooters balance sky-to-ground exposure without a physical filter attached to the lens. At 511g body-only, the OM-1 Mark II packs a serious feature set into a frame small enough to carry all day.

Who It's For

Wildlife and bird photographers get direct benefit from the 2x crop factor extending effective focal length, 120 fps Pro Capture with a 213-frame RAW buffer, and AI detection AF that locks onto eyes and tracks erratic movement. Landscape photographers working in rain or cold will rely on the IP53 rating, freeze-proof performance to -10°C, and the Live GND function for filter-free exposure balancing at golden hour. Sports and action shooters doing field work or motorsport coverage get the 1,053-point AF system and 10 fps mechanical burst as reliable fallbacks when the electronic shutter isn't appropriate. Travel photographers carrying long glass on foot appreciate that 511g body weight alongside 8.5 stops of IBIS for low-light handheld work without a tripod.

Key Features

• 20.4MP stacked BSI Live MOS sensor with TruePic X processor
• 2x crop factor: 400mm frames as 800mm equivalent
• 1,053-point all-cross-type AF with AI subject detection for birds, animals, vehicles, humans
• 120 fps burst with Pro Capture mode, 213 RAW frame buffer
• 8.5 stops of 5-axis IBIS for handheld telephoto work
• DCI 4K 59.94 fps internal, 12-bit RAW over HDMI, OM-Log for grading
• Live GND computational ND filter without physical glass
• IP53 weather-sealed, freeze-proof to -10°C, 511g body

FAQ

Why is the 2x crop factor actually an advantage for wildlife and bird photography?

The Micro Four Thirds sensor's 2x crop factor means a 400mm lens frames like 800mm without optical compromise. You get genuine reach without the size, weight, or cost of a full-frame super-telephoto, and the smaller sensor keeps the system portable for all-day handheld shooting.

How does Pro Capture mode work, and when would I use it?

The shutter button's halfway press starts recording frames into the buffer before you fully depress it. At 120 fps you're capturing retrospectively, so fleeting moments you'd normally miss due to reaction time are already in the card. Essential for unpredictable subjects - birds taking flight, motorsports, wildlife behavior.

Can I shoot 120 fps continuously, or is there a buffer limit?

At 120 fps electronic shutter, you'll get approximately 213 RAW frames before the buffer fills. That's roughly 1.8 seconds of continuous capture at top speed. For longer bursts, drop to 10 fps mechanical shutter, which has no practical buffer limit.

What's the difference between internal DCI 4K recording and the HDMI RAW output?

Internal recording maxes at DCI 4K 59.94 fps H.265 to the SD cards with no time limit. Over HDMI you get 12-bit RAW output to an external recorder like the Atomos Ninja, giving you more color information and grading latitude for professional post-production.

Does the 8.5 stops of stabilization work at 1/15 second with a 400mm lens?

Yes. The 5-axis IBIS system compensates 8.5 stops, which means a 400mm shot (800mm equivalent) at 1/15 second is genuinely handholdable. You'll get keepers, though a monopod or gimbal head will improve consistency on stationary subjects.

What does Live GND do, and why is it a first?

Live GND is computational photography that simulates a graduated ND filter in-camera without a physical filter. You adjust the strength (GND2/4/8), type (soft/medium/hard), position, and angle in the EVF in real-time. No other camera does this. It's transformative for landscape shooters who don't carry filter kits.

Is the OM-1 Mark II weather-sealed enough for rain or snow?

IP53 splash and dustproof with freeze-proof operation to -10°C. It handles sustained light rain and snow, but won't survive submersion or direct spray. The sealing is strategic across the magnesium body - good for working conditions, not for abuse.