Mamiya RB67 Professional S

{"overview":"The Mamiya RB67 Professional S is a 6×7 medium format SLR introduced in 1974 as the second generation of the RB67 system. Results are strongly condition- and configuration-sensitive: bare bodies with worn backs sit at the lower end of the range, while complete outfits with a clean 90mm Sekor, prism or waist-level finder, and a working 120 back fetch the upper figures in the saleroom.","buying_guide":"Inspect the bellows for pinholes, check that the mirror returns and the rear curtain closes after each exposure, and confirm the film back's dark slide interlock and frame counter advance correctly. Sekor C lenses should fire at all marked shutter speeds, particularly 1 second and B, as the leaf shutters can become sluggish with age.

Generated summary, 18 Apr 2026 — not checked by hand; prices on this page come from the sales, not from this text.