Coloured filters and EIR

[Andy Finney <andy@xxxxxxxxxxxxxxxx>]

Hi,

Chatting filters over a drink recently Spearmint and I realised that 
with ostensibly the same colour filter we got completely different 
results with IR Ektachrome. I use Hoya and he uses Cokin.

This would explain why we get such diversity of results with this 
stuff. The infrared response of the coloured filters must differ 
significantly. One for Cocam I think? Any thoughts Clive?

Cheers

Andy
www.invisiblelight.co.uk
www.atsf.co.uk/ilight/
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