Well, alternatives to what most of us currently do, anyway ... I came across this the other day, a nice resource for experimenters who would like to try some photographic processes from previous eras ...
Amazing to me is the length of the list of "Forgotten" processes list. Hard to believe there are that many processes that were used and no one is doing them anymore....especially in this information age.
BTW, does using a Daguerrotype setting in software count?
Yes, it's completely authentic ... in fact, I'd encourage you to post a few at RFF, describing just how good the software is at producing such authentic images ... don't worry that you use an E-M5, just post them in one of the Leica forums