Apple is rolling out iOS 9.2 today, and among a host of minor
features and fixes is new iPhone support for Apple’s Lightning to
USB Camera Adapter. This means you can now connect your camera
to your iPhone and import photos directly without having to use a
computer as the middleman.
The feature should be a boon for Instagram users who prefer to
shoot photos with a dedicated camera before sharing them on the
service. After connecting the adapter to your iPhone and
connecting your camera to the adapter using a USB cable, your
iPhone will open up its Photos app and allow you to choose which
photos (JPEG or RAW) and videos you’d like to import.