Bronica / Nikkor Zenzanon-PE 75mm f/2.8

Late 1990s wedding receptions ran on this lens. ETRSi on a strap, a strobe dragging against dim hall ambient, flash syncing clean at 1/500th because the shutter lives in the lens instead of the body. That is the whole reason the Zenzanon-PE 75mm ended up in so many working bags. It is the normal lens for the Bronica ETR, the 6x4.5 SLR that pros bought when a Hasselblad ran three times the money. On the 645 frame, 75mm lands almost exactly where a 50mm does on 35mm. Slightly long of true normal, kind to faces, nothing strange about the perspective.

The ETR was a clean break from the older Bronica bodies. Those earlier 6x6 focal-plane cameras carried Nikkor glass, but when Bronica went to a leaf-shutter system in the mid-1970s they cut that cord and built the whole lineup around Zenzanon optics. Many were designed and made in-house, and a number of the later PE-series lenses came from Schneider-Kreuznach in Germany. No ETR lens ever wore a Nikkor badge. Optically this 75mm is honest about what it is. Wide open at f/2.8 it is decent but not special, soft in the far corners and a little low on contrast, the kind of thing that bites you on a flat copy job. Close it to f/5.6 or f/8 and it tightens to even, hard edge-to-edge sharpness across the negative. Color sits neutral, flare is well controlled for the age, and the blur behind a half-length portrait stays quiet and well-behaved.

So it earns its keep as a portrait and documentary lens, with weddings and editorial work in the middle of its sweet spot. Every ETR lens packs its own Seiko leaf shutter rather than a curtain in the body, which is why the flash sync runs all the way to 1/500th. When you are balancing a strobe against bright daylight, that top sync speed is real room to work. Set the aperture for your flash, meter the ambient, and let Zone Light Meter give you the shutter speed that holds the background where you want it, no curtain-falloff guesswork.

The weakness is wide open and the system tax behind it. At f/2.8 you do not get the dreamy subject isolation an 80mm Planar pulls off on a Hasselblad, and medium format depth of field at full aperture is thinner than people expect, so nailing focus on a moving subject through the ETR's manual screen is genuinely hard. Treat it as a stop-down lens that happens to open to 2.8, not a low-light tool.

Today it is one of the cheaper ways into real medium format. A clean PE 75mm with a working shutter goes for a fraction of the Hasselblad or Rollei equivalent, and most people cross-shopping it are weighing a complete ETRSi kit against a single Zeiss lens. They still buy it because the negatives hold genuine 645 detail, the leaf shutter still flashes at 1/500th, and the 62mm thread takes cheap, common screw-in filters. The catch is age. These Seiko shutters can gum up after decades, and a CLA on an old leaf shutter is not free, so buy from someone who has fired it across the full speed range.