Hello, I'm currently researching a way to turn my black and white film (both developed and undeveloped) into slides for use on a slide projector, but I am still unclear on a few things. I'll most likely be using the Leica Eldia for this process, some manuals and forum posts seem to indicate one has to use orthochromatic film. Is this completely necessary? Is there any disadvantage to usingregular b&w film, such as the ones I use for shooting in a regular 35mm camera? I understand the use of orthochromatic film might be of benefit for the process of advancing both the "print" film and the negative film, but is there any other reason as to why to use it? Also, do you have any suggestions for the set-up? Lamp distance/power, positioning, etc. Another question, is there a more appropriate way to doing this job? I'll probably be doing this quite frequently but not in an industrial way, it's just for my personal projects. I've also read an article on the Ilford site (http://www.ilfordphoto.com/Webfiles/20114271220441194.pdf) about reversal processing, do you guys have any thoughts on this? I understand this might be a very niche question but I'd appreciate any help I can get! Thanks!