The Fish Gelatin process - first CMYK prints

[NedL]

I have never heard of a fish gelatin process, but about an hour ago I had a meal of smoked Haddok that had exactly the same colour of the stone building in the left of your picture. If you used octopus, would it have the same colour as their ink?

Hi Clive.
I know you are joking, but....
In the 1850's, Gustave le Gray used rice starch and isinglass in the iodizing stage to prepare his waxed paper negatives. I use his method of preparing rice starch when I make salt prints or when I make "Pelegy process" calotypes. I've never added the isinglass. Here is a reference, see page 8: Gustave Le Gray Waxed Paper Process

 

[cliveh]

Hi Clive.
I know you are joking, but....
In the 1850's, Gustave le Gray used rice starch and isinglass in the iodizing stage to prepare his waxed paper negatives. I use his method of preparing rice starch when I make salt prints or when I make "Pelegy process" calotypes. I've never added the isinglass. Here is a reference, see page 8: Gustave Le Gray Waxed Paper Process

Thanks Ned, that was interesting and I still have that wonderful pinhole image you sent me.