120 film
…back side. Some cameras capable of using both 120 and 220 film will have a two position adjustment of the pressure plate (e.g. the Yashica-Mat 124G, Pentax 6x7, Mamiya C220 or Mamiya C330) while others will require different film backs e.g. the Pentax 645 or Kowa Six. The specifications for 120 and 220 film…