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Canon XH Series HDV Camcorders
Canon XH G1S / G1 (with SDI), Canon XH A1S / A1 (without SDI).

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Old November 5th, 2010, 03:49 PM   #31
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It was indeed gelatine, and faded amazingly quickly. In the 60s, gel really was gelatine, but plastics became popular in the 70s. The first 'proper' man-made gel was an acetate, quite thick and it hardened quickly - especially in the more saturated colours - going almost transparent in the centre of the beam. Brands were Cinemoid (Strand) in the UK, and Rosco produced similar stuff in the US. Polycarbonate or polyester is the current material used by most manufacturers - polyester being more heatproof, so better for high temp use.
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Old November 5th, 2010, 04:37 PM   #32
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Thanks to all...a lot of good info.
Jeff
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