I'm about stepping into large format. But I need some recommendation about what B&W film to use since most of the films I used to use are nt available in sheet size. I'm looking for slow/medium speed 5x7 film. I read in Photo Technique magazine that Apx 100 is regarded by some as the best. My second alternative is Ilford PF 4 plus, since I loved the pan f plus which doesn't exist in sheet sizes(posted 8704 days ago)The third is Kodak ektapan b&w sheet film.
Another question: is there a difference between 5x7 inch size & the 13x18 cm size? Do I need different holders? Kodak advertizes 5x7 while agfa 13x18; so should I buy a film holder for kodak films and another for agfa?
thanks