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G0TEZ > CINE 27.04.06 06:01l 47 Lines 1908 Bytes #999 (0) @ WW
BID : 39403-GB7FCR
Read: OE7HNT DJ9AO GUEST
Subj: Two colour film and TV.
Path: DB0FHN<DB0RGB<DB0MRW<DK0WUE<7M3TJZ<LZ3NP<W4JAX<GB7FCR
Sent: 060426/2043Z @:GB7FCR.#16.GBR.EU #:39403 [Blackpool] FBB-7.03a $:39403-GB
From: G0TEZ@GB7FCR.#16.GBR.EU
To : CINE@WW
At school, we learnt that William Friese Greene was the inventor of the
first successful movie camera.
He is not mentioned in the OED but, interestingly, we have been seeing a
programme on TV about his son,Claude, who travelled the UK with a cine
camera of his own design, filming life in the 1920s.
The voice over says that he used a two colour system, red and blue - green
(cyan). I have a feeling that they are mistaken and that he actually used
orange, not red.
Where the dyes have survived, the colour is excellent. On fast moving
objects or a fast pan, there is some colour fringing but I suspect this
was due to the alternate frames of orange and cyan which he used.
I amd sure most people will know about my interest in John Logie Baird's
TV system. He used Orange/Cyan and even made an adapter to turn B&W TV
into colour by alternating the fields, or frames as they were called then,
to produce, when interlaced, a 500 line colour picture. With no dyes
involved,
especially with his Telechrome camera, he would have had, what one of his
co -workers described to me as "satisfactory" colour pictures.
It is a pity that the Friese - Greenes have now officially ceased to
exist, except for Claudes documentaries. If anyone can find them in any
other encyclopaedia, I would be interested to see if they are mentioned.
If anyone has seen the films, you can see that on occasion, there is a
pure orange and several instances of a pure blue as well as a lot of good
flesh tones. This makes it far more likely that he was using Orange/Cyan
not red.
With the 3 colour TV we learn that the colours are 30% Red,59% Green and
11% Blue to produce white. Orange.Cyan is likely to have been 40% 60%
then.
It is a pity there aren't as many old books around as there once were.
All the best from - Ian, G0TEZ @ GB7FCR
Message timed: 20:53 GMT on 2006-Apr-25
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