The Plus is very much like my old 600 from the '90s, but has a tripod mount and this app gives full manual control from bluetooth distance (about 30'). The camera has fixed focus, but a multitude of apertures to control depth of field, up to 30s long exposure and bulb mode which holds open the shutter indefinitely while displaying a timer. This is really as far as I could ever dream of taking the format. 600's emulsion wasn't great even 30 years ago, so a packfilm version of this setup would be amazing. I far prefer the photo size of 600 vs. even Instax Wide.What the app lacks (unless I just haven't found it yet) is that, while there is a self-timer mode and a full manual mode, there does not seem to be a self-timer within full manual mode. It would be nice to set up a long exposure selfie, set the phone out of the frame, then take a moment to settle down to stand completely still and composed for the shot.Also, when set to manual eject (for not scaring pets, for example), the eject button becomes inactive after about 10 seconds following completion of exposure. The camera buttons do not work while using the app. This means to get the photo out, you need to power-cycle, cover the lens and press flash disable and shutter buttons at the same time...just to eject! I'm turning that feature off and just ejecting it automatically. This doesn't affect shaking during exposure, so only the noise is the issue for me.