[GreenKeys] Now I know how they work!

[Dave Horsfall]

On Wed, 31 May 2017, Richard Knoppow wrote:

> In Dufaycolor yet! See
> 
> https://en.wikipedia.org/wiki/Dufaycolor
> 
> for a short article on this interesting color photography system. It 
> even mentions the BT film linked below. Duplicating it is a difficult 
> process.

Yes, I was astonished when I saw it was in colour.  I was half-thinking of 
Technicolor (whereby colours are really garish, but skin tones tended 
towards the yellow or the green) but I doubted whether it would've gone to 
that extreme.

-- 
Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."