I bought a pro pack of VELVIA 50 slide film in 120 for my trip last year and ended up only using one roll. It IS EXPIRED, but has been properly cold stored and is still in all original packaging. I wish to trade this slide film for some color negative film - my preferences are for Ektar, but I will take Portra or something similar. Expired is ok, too - as long as it's not too old and has been properly stored! Thanks!