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<p>[QUOTE=&quot;daveydempsey, post: 414430, member: 22&quot;]After reading Terry&#039;s Transparencies.</p><p><br /></p><p>I found this</p><p><br /></p><p>In <a href="https://en.wikipedia.org/wiki/Photography" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Photography" rel="nofollow">photography</a>, <b>reversal film</b> is a type of <a href="https://en.wikipedia.org/wiki/Photographic_film" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Photographic_film" rel="nofollow">photographic film</a> that produces a <a href="https://en.wikipedia.org/wiki/Positive_(photography)" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Positive_(photography)" rel="nofollow">positive</a> image on a <a href="https://en.wikipedia.org/wiki/Transparency_(optics)" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Transparency_(optics)" rel="nofollow">transparent</a> base. The film is processed to produce transparencies or diapositives (abbreviated as &quot;diafilm&quot; in many countries) instead of <a href="https://en.wikipedia.org/wiki/Negative_(photography)" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Negative_(photography)" rel="nofollow">negatives</a> and <a href="https://en.wikipedia.org/wiki/Photographic_printing" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Photographic_printing" rel="nofollow">prints</a>. Reversal film is produced in various sizes.</p><p><br /></p><p>So like a projector slide film, only these are quite big.[/QUOTE]</p><p><br /></p>

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