The Mac photos app defaults opens whenever the an iPhone, digital camera, SD memory card is connected to the computer. This will be helpful for some users where as for some other people these will irritates. If you want to stop the photos opening automatically in OS X then follow the steps given below :
How to stop Photos opening automatically in OS X :
- Initially connect the iPhone, Digital Camera or SD memory card to the Mac device and let photos app launch itself as usual.
- Now under the import tab of the photos application, look at the upper left corner to find the device name, it will indicates which hardware will no longer automatically activate the photos application.
- Click the check box so that open photos of this device is so longer selected (likewise, toggling this on would enable Photos app to open itself again automatically when this device is connected).
- Quit out of Photos app, the change is immediate for that device this can be switched back at any time in the same OS X Photos app screen
Turning this off means you will have to manually transfer the pictures from an iPhone camera or SD card to the Mac Photos applications, but it doesn’t stop the application working with the device and all it does is prevent the Photos app from opening itself automatically in OS X. With this setting turned off, you can connect the iPhone or any other devices to the Mac without the app launching, and you can then decide to either open Photos yourself, copy pictures over from Image Capture, or use whatever other Mac app you wish to use to engage with the device.
This preference must be set on a per-device basis, meaning if you connect multiple iPhones, iPads, digital cameras, or other picture containing devices to the Mac, you’ll have to toggle the same Import setting option for each specific piece of connected hardware, otherwise each will launch Photos app on it’s own. Ideally, a settings option would be available in Preferences to apply this universally to all devices.