This is my binocular adapter for the galaxy s7 edge. You can see the difference the binoculars make with the photo I took of a tree in my front yard. To make the adapter (pictured in red), print out the cover and the female thread pieces separate. Print the threaded piece in high resolution to make sure it properly screws. Super-glue either side of the thread piece, carefully line up and stick it against the back of the cover.
The binocular with the light blue adapter is a small 6x16 binocular. The larger more common one is a 10x25 binocular. To make the adapter for the small binocular, print the small male base and screw pieces separately and stick together with super-glue. The large binocular adapter can be printed as one piece, which is why there's only one file.
Since the binoculars shake quite, I made a case for my phone to use on a tripod. There are three holes on the tripod case that are self threading. The holes should fit any regular tripod. Make sure to print the case upright.
When I started college last year, I decided to make a telescope adapter for astrophotography. Unfortunately, I forgot what size telescope I used and what diameter eyepiece the adapter fits on. The telescope adapter comes in two pieces, just like the small binocular adapter, and is put together the same way. I only show two moon photos above, but there are more on my website at (https://www.souzoumaker.com/blog-1/2017/8/8/lens-adapter).