Stop Photos from launching when SD card is inserted
Since upgrading to El Capitan, everytime I insert an SD card, Photos launches. How to make it stop? I have unchecked the box "open photos for this device", but it continues to launch, even if it's the same card that has not been reformatted, but only had new photos added to it. I never, ever want to use Photos for anything. (I'm happy for you if you like it, but I switched to Lightroom after Apple stopped updating Aperture.)
If I can't stop it from launching through preferences, can I kill Photos, so it's no longer on my computer? Delete it, break it, cripple it, so it can't launch? I don't use iCloud Photos, Photostream, etc. Any ideas?
iMac, OS X El Capitan (10.11.1)