Re: OT Film

[Godfrey DiGiorgi]

ISO 50 doesn't really net much of an advantage over ISO 100 if you  
want to go to a longer shutter time. I use a B+W type 106 ND filter  
with 6 stops reduction to get longer shutter times for blurring water  
and more aperture control range in sunlight conditions.

Godfrey
Using ISO 50 film can make it easier when deliberately wanting long
exposures, as in blurred water shots, eliminating the need for an  
ND filter.