Digital BW, The Print

hi,

Getting good W&B from color negs is very complicated in Photoshop. Just 
desaturate, and increase contrast will be bad. You will need to use 
color filters, layers.. to get as good results as you can get with a 
b&w film with an orange filter.
Then you will spend lot of time on it.

And the b&w film often have nive grain if they have.

Another thing is that b&w flims have the best dynamic range: you can go 
on with an accidental wrong on exposure, and get a good print.

Selection of slides is really easier on already b&w negs. With color 
negs it is harder to see if the result could be good in B&w.

ciao