Tip: How to stop OSX Apple Photos from launching for all devices with one line • /r/photography
I had written earlier about what a pain Apple was making photographer’s lives by automatically launching Photos every time you inserted a memory card. Finally Reddit user “tobtoh” shares the solution on Reddit.
1) Open up Terminal.
2) Copy and paste this code into Terminal and press enter:
defaults -currentHost write com.apple.ImageCapture disableHotPlug -bool YES
That should be it. Note that I had to reboot my computer because, upon memory card insertion, the card would not mount. Not sure if it is related to the terminal code change, but it worked fine after reboot.
To reverse the process change “YES” to “NO”.