Educational screen & audio-visual guide (c1956-1971])

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Polaroid" & "PolaUne"® This and 554 gets you a finished slide in less than 90 seconds "This" is a regular Polaroid Land Camera. The 55< is the per-exposure cost of special transparency film, including the mount. All you have to do is load the film into the camera, snap the shutter, pull the tab and wait a moment. Then open the back of the camera and peel off a transparency. After a quick hardening and mounting in a click-together frame the slide is ready to show. From snap to screen in less than 90 seconds... just about half the time it takes to cook your morning egg. And at about V3 the cost of conventionally processed slides. A new Polaroid PolaLine Transparency film is especially designed for line copy work. The blacks are really black, the clear areas really clear. These are 3V4 x 4 transparencies for standard lantern slide projectors. Development time is 10 seconds. There's another film for continuous tone work. It comes in two sizes, one for stand ard slide projectors and one for use in a complete system that employs IVk x 2Va slides in a Polaroid Projector. Development time is 2 minutes. All three projection film types can be used with any Polaroid Land Camera that uses 40-series film except the J-65. For more information on how this film will help you in your work, write to Technical Sales Dept., Polaroid Corporation, Cambridge 39, Mass. Educational Screen and Aldiovisual Guide — March, 1962 119