Quote Originally Posted by brianmquinn View Post
Also to drive home my point. Note that in the link that frobozz provided
(#20 ) that there is more then one type of Plus-X listed.
KODAK PLUS-X AERECON II Film 3404
and
KODAK PLUS-X AEROGRAPHIC Film 2402
I'm not sure of the other differences, but one of the big differences between those two is the base thickness. Aerial film users love them some thin base, because then they can get much more film within the same roll diameter and weight constraints.

Oh, and one of them has been officially discontinued, though it's probably still available out there in various distributors' stocks.

Duncan