Astromania Universal Cell Phone Adapter Mount Support Binocular Monocular Spotting Scope Telescope and Microscope Optical Device - Black Photography does not have to be difficult, take pictures of your favourite subjects even faster, and they succeed almost without trying. Compliable with Binocular, monocular, telescope, microscope, spotting scope, night vision and most optical device. Suitable for smartphones with super large width range: 54-90mm, Fit iphone iphone 7plus,7,6plus,6,5s,5,Samsung Note,Sony,Sony Xperia Z and many other brands. Easily photograph through any instrument: For eyepieces of 28-47mm diameter - infinitely adjustable for almost every 1.25" eyepiece. Main part made of zinc alloy(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. Locking knob and soft EVA - keeping your smartphone safe so it cannot fall out. Keep devices from scratching and damaging. For telescope, spotting scope or binoculars - now easily photograph through any instrument. Suitable for smartphones with super large width range: 54-90mm, Fit iphone iphone 7plus,7,6plus, 6,5s,5, Samsung Note , Sony, Sony Xperia Z and many other brands. For eyepieces of 28-47mm diameter - infinitely adjustable for almost every 1.25&#034; eyepiece. Not fit 2inch eyepieces. Locking knob and soft EVA - keeping your smartphone safe so it cannot fall out. Binocular Monocular Telescope Microscope Spotting scope Night vision Most optical device Adjust the clamp to fit the eyepiece of your scope, but don&#039;t tighten it onto the scope just yet. Gently slide it back off the eyepiece. Tighten the eyepiece fixed knob securely and mount the phone on theadapter, then screw the knob into the end. Flip it over and loosen the knob to adjust the arm. Rotate it or adjust it up or down until you get the camera of your phone centered into the circle where the eyepiece will be. Once it&#039;s centered, tighten the knob securely. Turn on the camera and slide the clamp back onto the eyepiece. This allows you to make sure your field of view is clear. You&#039;ll have to make sure the black edges of the circle around your field of view are clear not blurry. When it&#039;s lined up right, tighten the clamp. This will keep your shots steady and clear.