The Finlay Process is illustrated here, because of the nature of the image it does not transfer well to the screen as can be seen from the interference patterns in the picture (These are not visible in the normally viewed image). With the advent of Dufaycolor in 1935 the Finlay Process declined in popularity and was withdrawn from sale.
Dufaycolor was the first film that the true amateur could use although it was still expensive, slow and you could not get prints to start with, only transparencies. With the advent of Kodachrome the films that we know today were finally on the market and from the 1930's onwards colour photography would get easier and easier.
Only the intervention of World War 2 and the shortages during and after the conflict slowed down the usage of colour film. The image on the right is a Dufaycolor of the quayside at Poole in 1937.
