Having applications intelligently auto-launch is only helpful if you plan to use the application for that function. Since most advanced photographers use Adobe Lightroom to import and manage their images, having an Apple application offer to import your images is redundant, and can cause multiple copies of images to be stored on your hard drive. Apple’s previous iPhoto app could be set to not auto-launch when your iPhone or iPad was attached to the computer through settings in iPhoto’s preferences. The new Photos app that has replaced iPhoto no longer lists that option, leaving photographers puzzled about how to eliminate this undesired auto-launch.
The answer lies with a seldom-mentioned Apple utility named Image Capture. Launch Image Capture from the Applications Folder (despite it’s Utility-like nature, its not in the Utilities subfolder), and look in the lower left corner.
Clicking on the tiny arrow at the bottom left will open up an option for deciding what application to trigger when your device is connected. Choosing “No Application” will solve the issue. You will need to do this for other phones and tablets you connect to your computer, on a per-device basis.
C. David Tobie