Works with a C615 on Yosemite
I’m now able to adjust the focus, lighting, color, and even the zoom with this app. The fact that this app works with the Logitech C615 seems to be a pretty well kept secret by Logitech for some reason. I’m running Yosemite 10.10.1, and it seems to be working fine.
Camijomo about
Logitech Camera Settings