The Bronica ETRS is a medium format, Single-Lens-Reflex lens shutter camera which uses a 6 x 4.5cm (2-1/4 x 1-5/8") negative size. This frame size is approximately 2.7x larger than the 35mm format and means that finer details in enlargements will appear "snappier". This compact and lightweight camera is based on Bronica's lens shutter system allowing flash synchronization up to 1/500sec.