Almost iso nothing..need to measure ev on the greens you want to photograph and learn it..it's worth it. The 092 filter is about 5 stops of neutral density and IR blocking. Without the filter, I rate the film at about 25..
Very interesting effects the IR film gave in this example, Evan. The tone of the leaves is definitely not what one would normally expect, but with the IR the rest still looks normal. Very cool. Great texture too.