Doctor J wrote:
I'm using an iPhone 15 Pro with a telescope. Can't seem to figure out which of the three lenses to line up with my camera mount. How does lens switching work? What camera settings are best? In Photos the best app or should I download another app?
Have you checked the instructions for the telescope, or searching the Internet for advice with your particular telescope?
As for apps, IMO Halide is a better camera app for most purposes. It doesn’t post-process RAW images the way the built in camera does, and gives more access to settings. BlackMagic Cam also is more versatile than the built in camera; it’s strongest feature is for video recording, but it also provides a wide range of still photo features.