So you want to attach your smartphone to binoculars or telescopes to view things on its display? The Carson HookUpz 2.0 Smartphone Adapter has you covered. It supports most smartphones and phablets, including iPhones. The device works with binoculars, spotting scopes, telescopes, microscopes, endoscopes, and everything in between.
The HookUpz 2.0 has a tight clamping mechanism to avoid slippage issues. It has a variable pitch screw for horizontal phone alignment. Ships in October.