OM System Introduces Weather-Resistant PEN Mirrorless Camera With AI Autofocus

The PEN supports C4K video recording at 4,096 × 2,160 pixels and 25 frames per second for PAL-system users, in addition to standard 4K recording.
The camera uses a base ISO of 80, according to the prematurely published Amazon listing, giving photographers an additional low-sensitivity option in bright conditions.
The PEN includes a 121-point, all-cross-type phase-detection autofocus system alongside its AI-powered human and pet recognition, a detail that underscores its broader autofocus capabilities.
Users can share custom color and monochrome profiles through OM System’s OI.Share app and access additional looks via the app’s Profile Library.
The camera supports vertical video recording, extending its feature set for content designed for smartphones and social-media platforms.
OM System has revived its iconic PEN camera as a compact mirrorless model built for travel and everyday shooting. Australian Photography reports the new PEN combines a rangefinder-style body with a 20.4-megapixel Micro Four Thirds sensor, 5-axis image stabilization rated up to 5.5 stops, and weather resistance — a first for the PEN line with an IPX1 dust and splash rating.
The camera launches September 10, 2026, with a body price of AU$1,499 in Australia and a two-lens package previewed at $1,299 in the US. No Film School notes it includes a 2.36-million-dot OLED viewfinder, 4K video, AI-powered autofocus for people and pets, and creative color and monochrome profiles.
The new PEN weighs just 393 grams and keeps the rangefinder look that made the original PEN famous. Tech Net Books highlights the built-in electronic viewfinder and weather sealing as standout additions. The body includes a flip-out display, useful for creative angles and selfies.
Inside sits a 121-point autofocus system with all cross-type sensors for fast focusing. Digital Camera World confirms the camera uses a base ISO of 80, giving photographers extra low-light options in bright daylight. A standard 4K mode and C4K recording at 4,096 × 2,160 pixels offer flexible video options for different workflows.
The PEN includes AI-assisted autofocus that recognizes people and pets automatically. This pairs with the camera's 121-point phase-detection system to handle both fast subjects and tricky lighting. No Film School reports the system balances AI smarts with traditional autofocus power.
Computational photography tools add creative punch. Users can apply color and monochrome profiles, creative filters, and edit images on the fly. Australian Photography notes users can share custom profiles through OM System's OI.Share app and download additional looks from the Profile Library.
OM System is also launching the M.Zuiko 14-42mm f/3.5-5.6 III zoom lens, built with weather resistance to match the camera body. A second kit option adds the 40-150mm zoom for extra reach. Both lenses complete a lightweight, portable setup for photographers on the move.
The PEN and 14-42mm kit arrive September 10, 2026, with AU$1,799 pricing in Australia. No Film School confirms pre-orders are already live in the US and UK, with the two-lens bundle hitting retailers first.
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