Medium format cameras use 120 or 220 roll film, which is about 6 centimeters wide (2 and 1/4 inches). This size of roll film was introduced in 1898 by Kodak for its Folding Pocket KODAK Camera. It thus seems safe to say that the world has reached agreement on the proper height for a medium-format negative. On the other hand, nobody has ever agreed on the proper width. There are many standard widths for 120 camera frames: 645, 6x6, 6x7, 6x8, 6x9, 6x12, and 6x17. These numbers are ostensibly in centimeters although in practice a 6x6 camera such as a Hasselblad will expose a 56 x 56 mm frame.
Creative fine art images produced with vintage 120 cameras are accepted into this group. Color or B/W images that have been created using vintage 120 folder, TLR, SLR, box or rangefinder cameras. Images taken with 6X4.5, 6X6, 6X7, 6X9 cameras that are at least 25 years old are OK to post here. NO toy cameras, no Diana, Holga or Clone images! 120 film only! No fakes, no 35mm, no digital and no porn. Please describe the camera and film used to take your pictures.