Browse Items (4 total) Browse All Browse by Tag Search Items Tags: ray barnes Sort by: Title Creator Date Added 50” lens on a HS 300 Vinten 35mm camera on a manual tracking mount 1950 - 1955 50" lens under test at Mount Lofty Lookout 1950 - 1955 50" lens testing using a rebuilt radar dish mount and with two operators where one followed the azimuth movement and the other the elevation. Designed to test better tracking of aircraft and missile interception 1950 - 1955 Hand-held magnifiers, loose lenses and casings EN Waterworth 1946 Output Formats atom, dcmes-xml, json, omeka-xml, rss2
