This is a huge enlargment (about 10X) even for Ektar, so grain might be slightly noticable if you get a
very crisp enlargement. But I'd select the film for its color balance relative to subject matter, rather
than just grain structure. Porta 160 is relatively low contrast and skintone balanced. Ektar is crisper
and more saturated, and not something you'd choose for high school yearbook pictures of kids with