These days, I carring out mainly Black and White films instead of color positive. (Actually I felt so burdened because the price of color positive films is too much.) Usually I have used Kodak 100ft bulk B&W film for high price then from several month ago I have tried RPX100 of Rollei  for somebody to say to me that quality get better before. But You get what you pay for!!! I think that from the first, RPX100/400 have many quality problems from production regardless of development of film. Espcially, black vertical line appeared in front of film in every 3 or 4 roll. Some dealers told …