Looking for someone who can make a blue sensitive only emulsion, faster than ISO 3, that i can use as negatives when processed. I will be coating on 4x5 glass or plexi. Was thinking about trying it myself but can't handle the learning curve right now. The emulsion will be used by me to coat plates for myself and potentially for plates to be shot by an artist that I work for. Could be used for an ongoing project so potential for a the need of a few litres over a period. If you are not interested if you could steer me to someone who may be it would be wonderful. Many thanks, Sean