I don't know if I'd call myself an *expert*, but I really do love mobile photography. And yeah, those pictures were incredible.
The biggest thing when it comes to low light photography is stillness: Either *you* have to be still, or your subject has to be. One of my favorite low light shots I've taken in recent memory was this guy:
https://www.instagram.com/p/BN9ZXCggEZY/
I didn't use anything other than the app Obscura, a *very* steady hand, and using the lip of the fountain to steady my iPhone 7 Plus. You really, really need a steady surface (ideally a tripod) to keep the phone from shaking.
https://www.instagram.com/p/BNPLqfXAM-V/
Same principle for this photo: rest the iPhone on a steady surface and pray. This was pitch darkness on a pier, with only the moon (off to the left) for light.
There are some great tools you can use to improve your low-light shots, for sure:
- A remote shutter button will keep you from shaking the iPhone when you go to take the photo
- Some sort of steadying rig for your iPhone (a Glif for a tripod, or even a simple $6-$10 portable plastic Amazon stand)
- A pocket reflector (like this:
Pocket Reflector - Photojojo) to bounce the light you do have onto your subject
Beyond that, it's having an eye for the action. The night is a time for mystery and delight: What is going to truly capture that spirit that you can photograph?