Hello Ron
I am new to digital but have 35 years experience with film based
work. I have also made hundreds of 13x19 images on my 1270 from 80
and 90 Mb files. I think that the S1 can give you very good 13x19
inch prints if you use the Tiff format. And if you could use the
Genuine Fractales program for your enlargements.
But they are different in look than film images, very good but with
their own look just as film based prints have their look. And 6x7,
4x5, 8x10 negatives and prints have their particular looks.
They may not look exactly like your film based portraits but here
is the "kicker" Ron if you don't compare the two the Fuji S1
images will be just fine.
Stephen