Some really great shots in your thread Brian - I'm extremely interested to see that you're using Moment lenses as I've been looking into them and considering purchasing. How have you been finding using the lenses? Any feedback for a potential buyer? [emoji4]
I have looked at other lenses for the iPhone but low quality held me back. Having studied many lens test reports I think the Moment lenses are the best available so far.
The Moment wa lens appeals to me especially because it keeps straight lines straight (it is rectilinear). Most other wa lenses for iPhone are of the semi-fisheye variety and cause considerable barrel distortion to the scene, especially unwelcome in creating bulging horizons. I really like shooting with wide angle with other cameras and always felt hampered that the regular iPhone lens was not nearly wide enough for my taste.
I certainly make a lot of shots without the Moment lenses, too, but probably use the Moment lenses for half my shots.
On the other side, the standard iPhone lens is wide angle enough to severely distort portrait faces in a most ugly way. Nobody deserves that sort of facial abuse. The Moment tele lens is very good for people pictures to keep them looking fairly normal and allowing them a more comfortable distance from the camera. I use it a lot for landscape shots, too, and I like the narrower field of view for close-ups but you can't focus nearly as close as without the lens, unless you add a close-up lens to the Moment tele. Really, the tele is not much of a tele, amounting only to the equivalent of a 60mm lens. But it is better than nothing, a step in the right direction.
It is important to understand that the Moment iPhone lenses are conversion lenses stacked on top of the iPhone lens and limited by the optical properties of that lens. It is especially difficult to make a tele conversion lens without edge softness or colour fringing but I think the Moment lens is as good as it can be.
I find the Moment lens mounting system good and solid. It is important to take care mounting the lens adapter plate on your phone to ensure the lenses will be correctly centered. Take time with this to get it right. I made a positioning jig with mat board to help. The mounting plates sticks on the camera and it is slim enough not to interfere with my OtterBox Commuter case. I just had to slightly enlarge the lens opening 1/16" above the lens using a small round file for a completely friction free fit. There is enough spacing at the back of the lens to clear the thickness of the case. However, a thicker case might require some more filing around the lens opening to allow the lens to mount without squeezing the case. I leave my case on all the time except when I use my Motrr robotic head. The Motrr mount for the iPhone 6 was designed to mount the phone without a case.