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The Folmer variable tension shutter is used on the United States Air Service hand-held and hand-operated plate camera and on some of the film cameras . It consists of a fixed aperture curtain wound on a curtain roller in which the spring can be set to various tensions, numbered 1 to 10. The range of speeds attainable is at best about three to one, or from yxTo to 3-^0 second, considerably shorter than the range indicated as desirable.
Representative Shutters
Last month we had the opportunity to know Italian Horse Protection Association thanks to a TV reportage and we immediately decided to adopt a horse that this association rescued from a terrible situation where it was kept for a long time. Italian Horse Protection (IHP) is a no-profit organization, hosted in a large property of the the “Villa da Filicaja” located on the Tuscany hills, with the aim to protect horses and other equines. In Italy IHP is the first and only association of this kind, they work to stop the abuses on the horses and to rescue those animals and get their custody by lw.
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