As some of you have noticed and already told us, Sofortbild is currently not able to recognize connected cameras when running on OS X El Capitan, the latest operating system version recently released by Apple.
We are still investigating the problem in our limited spare time. Currently it looks like the problem is rooted in the Nikon SDKs that we are using to talk to the cameras. If that turns out to be the case, there’s not a lot we can do, except hoping that Nikon will release updated versions of the SDKs for all of their cameras. Given the history of Nikon however, this is not the most likely scenario.
For now the only workaround is to keep using Sofortbild on Yosemite, the previous version of OS X, or an even older version.
We will keep you updated as we learn more.