Max would later claim to have constructed their first film camera on 20 August 1892, but this more likely happened in the summer or autumn of 1894. He also single-handedly constructed the Bioskop projector. Partially based on the dissolving view lantern, it featured two lenses and two separate film reels, one frame being projected alternately from each. It was hand-cranked to transport 44.5mm-wide unperforated Eastman-Kodak film-stock, which was carefully cut, perforated and re-assembled by hand and coated with an emulsion developed by Max. The projector was placed behind a screen, which was made properly transparent by keeping it wet to show the images optimally.