52 to 100mm has been tested compatible with iphone;iphone 5;5s;6;6 plus;7;7plus;Sony;Sony Xperia Z;Samsung Note;Samsung Galaxy S7;Galaxy 7;Galaxy 5;Galaxy Note 5;Samsung Note 4;ECT;Moto G5+ and many other brands
Fits eyepiece diameter from 25 to 48mm and 1.25" telescope;not fit 2" eyepieces;compatible with microscope;telescope;binoculars;monocular;spotting scope;night vision monocular and most optical device
Aluminum alloy shell;sturdy durable and lightweight;the phone clamp made of high strength PA plastic and features adjustable locking mechanism with a steel bolt not a spring
Works great for the phone in the up and down position taking pictures and recording sideways or in distant;keys capture the best videos of world successfully is practice and patience
SVBONY phone clamping features adjustable locking mechanism with a steel bolt (not a spring); Phone is protected by High density EVA pads