Andrew O'Neill
Moderator
After practicing with 4x5 film, I felt confident to move up to 8x10. I was quite happy with my first attempt, although some mild tweaking more forward.
Very interesting! What a process..........what was the length of darkroom time to get to the final dried print?
I have never seen or heard of using dilute PVA for sizing. I wonder if that would work for Platinum.
After practicing with 4x5 film, I felt confident to move up to 8x10. I was quite happy with my first attempt, although some mild tweaking more forward.
That is an absolutely beautiful result. If you don't mind answering: Are you using potassium or ammonium bichromate? How difficult is it to get hold of? What PPE do you use during mix-up of the dichromate?
Nice print. Could you please explain your choice of colours?
Usually it is blue filter -> yellow dye; green -> magenta and red -> cyan.
In your process it is blue -> yellow; green -> red and red -> blue.
Very...Very Nice Andrew. I'm hooked. I enjoy your videos very much.
Blue neg = yellow pigment
Green neg = red pigment
Red neg = blue pigment
I've always used yellow pigment for the blue filtered negative, red pigment for the green filtered negative, and blue pigment for the red filtered negative... I learnt this back in the 80's, when I was doing tri-colour lithography.I am puzzling the same as Romanco. Your colours are at odds with the usual colour wheel. Do they just have to be that way or is there a particular reason?
In any case nicely done as usual.
I've always used yellow pigment for the blue filtered negative, red pigment for the green filtered negative, and blue pigment for the red filtered negative... I learnt this back in the 80's, when I was doing tri-colour lithography.
Pthalo PB15:3 and Quin Rose PV19 are what I use for blue, and red.
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