On page 36 of the book a comment is made about 'cheap economy developers' being unsuitable for prints to be polysulphide toned. As well used developers are also advised against, I am uncertain as to whether the recommendation is simply for a strong fresh solution (say Ilford Multigrade at 1+4 to 1+9) or whether there are some developers that don't work as well for reasons of economy, which seems rather strange as most paper developers contain varying quantities of roughly the same compounds. Or to phrase the phrase the question differently, what is a 'cheap economy developer'?
Tom.
Tom.
