Congratulations on your choice of the Zenza Bronica GS-1, a lens shutter type single reflex camera in the 6x 7 format.The GS-1 provides the professional user with a lightweight and compact 6 x 7 format single lens reflex ofextremely useful versatility and multi-functional performance, which is based on the history and experiencegained in the development of the Zenza Bronica ETRS and SQ-A single lens reflexes, as well as the latesttechnological advances in the electronic field.The GS-1 has been developed as a full-scale system camera, with a wide range of versatile accessories andespecially with complete film back interchangeability which gives it multi-format capability for use in awide field of applications, including commercial photography, news photography, scientific photography,etc., as well as giving this 6 x 7 format single reflex versatility equal to the 35mm single reflex camera.Although instructions following are based on the GS-1 camera main body, the Zenzanon-PG 100mm lensand the Film Back GS 120, the choice of the finder is left to the discretion of the photographer who shouldalso read the instructions for the finder chosen. The choice of lens, film back and finder should be based onthe type of assignment contemplated by the user.To obtain best results from the Zenza Bronica GS-1, may we suggest that you read this instruction manualthrough carefully, before you even touch the camera, as your pleasure in using the camera will be evengreater if you thoroughly familiarize yourself with its working parts before loading your first roll of film.1GS-1