AG Schnozz wrote:
>>I have a problem with the statement that film grain is
>>really binary, is this really true?
I am having real problems with this argument about sensor spacing vs
grain size.
firstly since digital sensors see in black and white and require a
coloured filter to see in colour you need 3 sensors to get colour not
one. Secondly you need an antialias filter. thirdly there is space
between each sensor which can therefore record nothing at all.
*assuming* film grain is binary then you only need 8 grains to simulate
256 combinations and 24 grains to get 24 bit rgb. However film is
layered (unlike digital sensors) therefore you only need 8 grains in
three layers ontop of each other to get 24 bit rgb whereas digital
requires three sensors.
my 2pence worth
James
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