This camera's automatic exposure German manufacturing has a bright line viewfinder, flash provided by flash cubes. The lens focuses Reomar to 2.5 feet and the thread of the filter is"" Retina size"" 29.5mm. Name: Kodak Instamatic 324 produced between: 1966 - 1967 Lens Reomar f / 2.8, 38mm Shutter: 1/30, 1/250 film type: 126 cartridges Image size: 28 x 28 mm