Until it was withdrawn, I used Techpan and iso between 5 and 25 depending on the subject and lighting conditions. Had multiple loads for my Bronica ETRs. I could develop it as a negative or b&w slide. Nothing like a mf slide. For color, almost exclusively shot only slides, Fujichrome 100. The Kodachrome 64 was nothing like the original 25 that established Kodachrome's reputation especially for skin tones. WNED this week had a show, The Death of Analog, featuring the author of the book who documented the destruction of the Kodak film facilities around the world. He feels there are fewer photographers today than at film's peak while almost everyone is a picture taker. He also foresees the loss of intergenerational history as so few prints are going into albums and electronic media such as hard drives, flash drives are not suitable substitutes or, ever cds, dvds, etc. I wish someone would make an all manual digital camera, not auto functions. It could be useful for teaching and those wanting total manual control only. The first thing I do when picking up my dslr is switch ever off so there is total manual control. Sdly, there is no DoF scale on lenses so I have a app to determine it but, it really slows the process even more. I have sidelined my Bronica, too heavy at this point and pulled out my Rolleiflex. Will get the shutter serviced and am switching to it.