What is a 6×7 lens?
What is a 6×7 lens? The Pentax 6×7 (called “Pentax 67” after 1990) is a SLR medium format system film camera for 120 and 220 film, which produces images on the film that are nominally 6 cm by 7 cm in size (actual image on the film is 56 mm × 70 mm), made by […]