Because iPhone uses the same antenna for both Bluetooth and Wi-Fi, on rare occasions Bluetooth can interfere with the connection.
If app slowness becomes a problem (slow photo transfers, live view stuttering or lagging):
- If your camera supports it, switch to 5 GHz Wi-Fi connection (this option is typically found only in high-end full frame cameras).
- Disable Bluetooth in iOS Settings app (must be done in the Settings, not in Command Center!)
Some Canon and Sony cameras use Bluetooth to initiate the Wi-Fi connection. In such cases there are two options to initialize the connection.
Option A. Disable Bluetooth before connecting to the camera
- Fully disable Bluetooth in the iOS Settings app.
- Instead of relying on Shutter to re-establish connection with the camera, go to your camera menu -> wireless communication settings -> connect to smartphone -> shutter. The camera will display Wi-Fi name and password.
- On your iPhone, go to Wi-Fi Settings and connect to that network. You might need to enter the password the first time, but later it’ll be remembered.
- Once the Wi-Fi is connected, open Shutter. It will recognize the connection with the camera automatically.
Option B. Connect first, disable Bluetooth later
- Connect to the camera the same way as you usually do.
- If the app feels slow, go to iOS Settings app and disable Bluetooth. Shutter should stay connected to the camera even while you navigate to a different app.
- Return to Shutter. Connection speed should improve after a few seconds.
