

Christopher Nolan is famous for his commitment to large-format film, especially 15-perf 65mm/70mm IMAX. What is less widely known is one of the practical tools that has helped him previsualize those towering frames: a modified Pentax 6×7 medium-format still camera used as a director’s viewfinder.
Christopher Nolan’s teams have long used a modified Pentax 6×7 as a director’s viewfinder on IMAX productions, including The Odyssey. The camera was fitted with an IMAX mount so that actual IMAX lenses could be attached, giving a nearly exact match to the large 15-perf frame. The 6×7 negative size (roughly 56 × 70 mm) is remarkably close to the IMAX camera aperture, making the old medium-format SLR an effective and practical tool for framing shots.


















































