“FINE CAMERAS AND HOW THEY ARE MADE” 1953 ARGUS 35mm STILL CAMERA PROMO FILM XD95825

Join this channel to get access to perks:    / @periscopefilm   Help us preserve, scan and post more rare and endangered films! Join us on Patreon. Visit   / periscopefilm   Visit our website www.PeriscopeFilm.com This promo film titled “Fine Cameras and how they are made” is presented by Argus Cameras, Inc., and produced by Loucks & Norling Studios, Inc. in 1953. Argus Cameras is an American Cameras and photographic products company, founded in 1936. The film promotes Argus’ high quality cameras and shows the entire production process of the lens for the C4 35mm Argus camera. “Fine Cameras and how they are made” title banner and credits (00:06). A man uses an Argus C4 35mm camera (00:16). A photograph (00:27). The photo on film (00:32). Argus C4 35mm camera (00:34). A photograph (00:42). A woman uses an Argus C4 35mm camera (00:48). Argus C4 35mm cameras (00:56). An Argus Cameras building (01:16). Argus cameras displayed, including 75mm w/flash and C4 35mm cameras (01:25). A C4 35mm camera (01:37). Views of the technologies and functions of the camera (01:43). A man calculates camera lens determinations (01:52). Illustrations and photographs explain the calculations (02:08). C4 lens production is explained at an Argus production plant (03:16) starting with optical glass (03:27), which is ground and polished (03:46), then tested for its refractive index (03:51). Optical glass is sprayed with a dark coating (04:11), then mounted in a heated blocking tool (04:17), and then cooled in a bath (04:58). Different shapes and sizes of blocking tools (05:21). Views of how the blocking tools are made (05:32). The lenses are taken to the grinding room (06:02), grinded in precision grinders (06:12), and cleaned (07:09). The lenses are polished with water and cerium oxide (07:27). The lenses are periodically cleaned during the polishing process (08:05). The lenses are tested with a quartz gauge (08:13). The lenses are inspected manually (09:09) and are removed from the block (09:15). Illustrations explain the lenses’ surfaces (09:40). Different blocking tools (09:57), grinding tools (10:05), polishing tools (10:16), and quartz gauges (10:21). A finished lens (10:29). The lens optical centers aligned (10:41). They are washed, dried, and inspected (11:31). They are placed in a holder (11:54), and are coated in magnesium fluoride (12:07). Illustrations explain the coating process (12:41). The lenses in the holder are reversed (13:31). Illustrations explain the effect of the coating (13:55). Photographs by coated and uncoated lenses (14:20). Illustrations explain the centered mounting of the lenses (14:48). The lens mount is made (15:09). The lens and mount elements are assembled (15:30). The sharpness and focus is adjusted (15:44). The lenses are tested using an optical bench (15:54). A completed lens (16:10). A C4 35mm camera (16:16). Shutter explained (16:21). Illustrations explain the three principle shutter types (16:38). A camera with the shutter between the lens (16:50). Two cameras with the shutter behind the lens (16:56). The metal used for shutters are inspected (17:24), stamped into shutter leaves (17:33), and assembled by hand (17:39). The shutter is set (18:36). The front plate, frame, and lens mount barrel are installed (18:47). The flash synchronizer is tested (19:07). The rangefinder is installed (19:15), then adjusted (19:25). The focusing barrel and RAM rings are attached (19:51). The focusing scale is adjusted (20:06). The completed camera is inspected (20:29). The finished camera received its covering (20:46). Views of the quality control at various production steps (21:02) including the shutter and synchronizer (21:06). Illustrations explain the test-results (21:36). Boy Scouts use a camera (22:18). Argus Argoflex 75mm box camera (22:32). Argus C4 35mm camera (22:56). Using the focusing knob (23:05). Testing rangefinder (23:20). Argus C4 35mm camera (23:30). Argus Argoflex 75mm box camera (23:47). Argus C3 35mm camera (24:08). Argus C4 35mm camera and a detachable flash-unit (24:20). Light bulbs (25:11). Photography with Argus C4 (25:16). Slides projected (26:16). Motion picture films don't last forever; many have already been lost or destroyed. For almost two decades, we've worked to collect, scan and preserve the world as it was captured on 35mm, 16mm and 8mm movies -- including home movies, industrial films, and other non-fiction. If you have endangered films you'd like to have scanned, or wish to donate celluloid to Periscope Film so that we can share them with the world, we'd love to hear from you. Contact us via the weblink below. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com