Tanto per chiarezza anche per gli altri che passeranno da qui:
i filtri cokin non sono di plastica ma come riportato nel loro sito:
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7) Which material the COKIN filters are made of ?
It is important that a filter matches the optical precision of a lens. COKIN filters are made of the material best adapted to the filter’s ultimate use. Some are made of mineral glass and most
«A» & «P» filters are made of CR39* Organic Glass which is today a reputable lightweight and unbreakable optical material also used for ophtalmic glasses. Organic Z-PRO & X-PRO filters are made of a higher quality «3 rd generation» CR 39* specially developed by COKIN.
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E sono utilizzabili anche per videoproiezione come anche loro consigliano:
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8) What are the various applications of the COKIN CREATIVE FILTER SYSTEM ?
Thanks to its four sizes, the COKIN CREATIVE FILTER SYSTEM is suitable to a large variety of applications :
• Standard Cameras - SLR Cameras - Compact Cameras - Digital Cameras
• Digital Cameras
• Digital Camcorders - SLR Cameras with wide-angle lenses
• Video Projectors - SLR Cameras with telephoto lenses
• Video Cameras - Medium Format Cameras
• Broadcast and Motion Picture - Large Format Cameras
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il link alla pagina completa e' questo:
http://www.cokin.fr/ico5-p1.html
Ciao
Stefano
