Fuji Fujica GM670

Picture a wedding photographer in 1975 trying to drop fill flash into a backlit garden ceremony at high noon. With a focal-plane medium format body the flash sync caps out somewhere slow and the ambient blows past it. The GM670 does not care. Its leaf shutter syncs flash at every speed up to its top, so you can shoot near wide open at 1/500 and balance a strobe against bright sun. Most 6x7 bodies of the era simply cannot do that, and for an event shooter that gap is the reason this camera exists at all.

This is a rangefinder, not an SLR, which is why it stays quiet and flat. No mirror box, no slap, no blackout at the moment of exposure. You frame through a bright finder with projected lines, focus by lining up a rangefinder patch in the center, and the leaf shutter in the lens goes off with a soft click instead of the screen-door bang you get from a Pentax 67. For a 6x7 negative, that combination is unusual. You get the big frame without the weight penalty of a reflex prism and without the vibration that pushes you onto a tripod.

Each frame runs 6x7 centimeters, which lands close to an 8x10 print proportion, and on 120 you get ten exposures per roll. Loading is straightforward back-loading 120. The Fuji G mount carries a small set of leaf-shutter optics built for the body, sharp but limited in number, since Fuji only made these for a short window, roughly 1974 to 1978, and never in big volume. That scarcity is part of why the GM670 has a quiet cult following now instead of mainstream recognition.

The weakness you live with is metering, because the body gives you none. A camera built around perfect flash sync and a clean rangefinder leaves exposure entirely in your hands, so you are reading the light yourself on every frame. An incident or spot reading from the Zone Light Meter app is the meter this body never had. Read the scene, place your shadows where you want them, set the lens. And because the leaf shutter syncs at every speed, a daylight-fill reading translates straight to your flash setup with no sync ceiling to fight.

Today the GM670 sits in an odd niche. People cross-shop it against the Mamiya leaf-shutter rangefinders and against the heavier reflex 6x7 bodies. It wins on portability and flash flexibility, and it gives up ground on lens selection and finder magnification compared to an SLR. The finder is bright but not large, and precise composition takes some practice. For a location portraitist, a press shooter, or anyone who wants 6x7 negatives without bolting down a tripod, though, it stays an unusually smart choice. Find a clean one, plan to bring your own meter, and it will hold its own against bodies twice its bulk.