Most modern professional or prosumer cameras now feature Wi-Fi or Bluetooth radios. If you have one that does, consider services like Dropbox and Google Photos (Apple’s iCloud Photo Library is cloud-based, too, but it requires an iPhone or Mac). The Photos app on your iPhone then launches. Tap the Import button to transfer the photos. Tap either Import All or select the individual photos you want and tap Import. This process doesn’t go in the other direction: You can’t use this adapter to upload photos from your phone to your camera. As with the other Apple adapter, the Photos app prompts you to import some or all of the photos on the SD card. It’s not quite as direct as the first option, but it doesn’t require you to keep a spare USB cable on hand, either. You’ll have to install Nikon’s Wireless Mobile Utility app to transfer the images. Once they’re in the app, you can move them to other photo apps on your phone, or share them through email or social media. Canon offers a similar device: the SD-card-style W-E1 Wi-Fi Adapter. Other wireless adapters and SD cards are also available. With these devices, you remove the SD card from your camera, connect the adapter to your iPhone, insert the SD card, and import your photos. Depending on the accessory, you may need to install an app. The Leef device requires its MobileMemory app, for instance. If it is, then unplug the adapter, wait about 30 seconds, and plug it in again. Unplug the camera or SD card, wait about 30 seconds, and try again.
