Digital BW, The Print

Mark has posted the results for the latest batch of fade tests.  These include the 40 Megalux-Hour results for the 3MK carbon and K6 Neutral inks on H Photo Rag.  See http://www.aardenburg-imaging.com/cgi-bin/mrk/_4346c2hvd19kb2NfbGlzdC80

The 100% carbon is still looking very good.

The K6 Neutral sample reached its Conservation Display rating point at 37 MLux hours.  See http://www.aardenburg-imaging.com/documents.html for a link to the PDF that explains this rating.  As I understand it, it's the amount of light exposure the print can take and still look very good to excellent.  37 MLux hours is 18.5 Wilhelm years.  

This is a heck of a database Mark is putting together.

(I wonder how a B&W gelatin silver print would do.)

Paul
www.PaulRoark.com