I've only ever bought one app for my Android, the very handy DSLR Controller app (www.dslrcontroller.com)
. It lets you live view through your phone and control all of the main aspects of taking pics via the app: aperature, shutter speed, ISO, etc. Remote control thus becomes a snap, and it operates as an intervalometer as well to allow time lapse sequences to be captured. My Cannon Rebel T6 has wireless built-in so all of this is possible without any additional hardware (though you can get a USB on-the-go adapter and control that way).
I headed out to a two week Colorado vacation (delightful time!) but -- couldn't get the app to work! We were up on Mesa Verde with crystal clear night skies so wanted to do some galaxy shots and had to resort to awkward scrunched over positions to check through the viewfinder/display screen. Repeated resets of the phone and camera wireless to no avail.
Once I got home searching the 'net far and wide didn't uncover anything. I knew that you had to tell your phone to "forget" any previously set up camera networks so the NFC tap would establish a clean connect but that wasn't working.
After HOURS of trial and error an obscure FAQ reference on the DSLR Controller site gave me a clue: I discovered that custom functions I had set up were blocking the app. In particular, I had set up back button focus. Turn this off, voila, works every time.
So for anyone else struggling with this, here are my checklist steps:
- Turn on Wi-Fi/NFC on camera
- Clear out previous use of network on phone to re-establish: Settings > Wi-Fi > Advanced, Forget previous camera networks before starting DSLR Controller and doing NFC tap
- Turn off back button focus (turned on by C.FN IV, 3:AE/AF, no AE Lock)
- Start DSLR Controller, NFC tap, holding there until connection established, acknowledge connection on camera
Now that I have a repeatable method (and notes in my camera bag on the steps), guess I have to head back to Mesa Verde!