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GFX ETERNA 55 Joins the IMAX Club: When Medium Format Finally Goes Big Screen

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Fujifilm has quietly crossed a line that a lot of filmmakers assumed would stay theoretical for years: medium format is now officially IMAX-certified. The GFX ETERNA 55, Fujifilm’s first digital camera built from the ground up for professional filmmaking, has been added to the list of cameras approved for the Filmed For IMAX program, putting it in the same ecosystem as the most serious tools in the industry. This isn’t just a badge or a marketing flourish. IMAX certification means the camera meets strict standards for image quality and, just as importantly, can exploit IMAX’s expanded aspect ratios, the tall, breathing frames that make IMAX feel like a physical space rather than just a big screen.

What makes this moment genuinely interesting is the sensor itself. The GFX ETERNA 55 uses the tallest digital filmmaking sensor currently available on the open market, and in Open Gate mode it records the full 32.71mm sensor height. That number might sound abstract, but visually it translates into something filmmakers instantly feel: vertical scale. The native 4:3 Open Gate GFX sensor gives directors and DPs a huge canvas to play with, one that naturally supports both spherical and anamorphic workflows without forcing compromises in framing. It’s the kind of sensor that lets you decide composition later, not fight it during the shoot, and that flexibility is exactly what IMAX cares about when it talks about immersion.

IMAX’s Filmed For IMAX program is often misunderstood as a branding exercise, but it’s really an end-to-end pipeline that touches everything from camera choice to post-production to final exhibition. Certified cameras are the foundation of that pipeline, and adding the GFX ETERNA 55 expands the creative vocabulary available to filmmakers who want to work inside it. Jonathan Fischer, IMAX’s Chief Content Officer, framed it plainly: more certified cameras mean more directors and cinematographers can design images specifically for IMAX rather than adapting later. That shift matters, because IMAX works best when it’s intentional, when scale is designed into the image instead of stretched onto it.

Fujifilm, for its part, didn’t just deliver a sensor and call it a day. The ETERNA 55 arrives production-ready, with a cinema-style body, industry-standard connections, an adaptable native lens mount, and an internal electronic variable ND that’s visually stepless, meaning exposure changes don’t announce themselves mid-shot. The camera also introduces F-Log2 C, a new logarithmic color profile designed for maximum flexibility in color grading, and it ships with 10 new Film Simulation 3D LUTs alongside 20 internal film simulation modes. Fujifilm’s film heritage is doing real work here, not nostalgia work, and the creative looks are meant to be used, not just admired in menus.

Yuji Igarashi from Fujifilm spoke about theatrical cinema as a shared human experience, and it’s hard not to read the ETERNA 55 as a statement of intent in that direction. At a time when filmmaking tools are increasingly optimized for streaming pipelines and small screens, Fujifilm is betting on scale, on the idea that some stories still want to be physically overwhelming. The IMAX certification makes that bet official. Medium format is no longer a curiosity for motion work, and the GFX ETERNA 55 is now a legitimate gateway for filmmakers who want to dream in taller frames, deeper images, and stories that are meant to be felt in your chest, not just watched.

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