Disable iPhoto auto launch when connecting an iPhone or iPad iPhoto starts launching when iPhone is connected even though it never used to before Yosemite.
Steps described in: On connecting device - iTunes or iPhotos must not open does not work in Yosemite. Yosemite seems to ignore the iPhoto settings.
With iPhone plugged in.

Open application &quot;Image capture&quot;
Select your iPhone
Press the triangle in square symbol in the lower left corner.
Choose &quot;No application&quot; in the droplist under &quot;Connecting this iPhone opens:&quot;