I second Thomas' ideas: It is not necessary to tone negs for permanance if they are properly processed. One can, however use selenium toner as an intensifier. Kodak RST 1:2 for about 5 min with constant agitation will give a proportional intensification roughly equivalent to a one Zone expansion. (N+1). I use this technique routinely with good results. It is also possible to selectively tone certain areas to strengthen highlights. Reards, ;^D)(posted 8738 days ago)