SV214 Pro has 3-Axis precise adjustment. Precisely adjust X,Y,Z three axes. It is compatible with most mobile phones. Z axis adjustment helps get the correct eye relief to capture the clear images and videos of celestral objects with your smartphone like never before. This mobile phone holder can be used for telescopes with an outer diameter range of 28-48mm. The SV214 Pro 3-axis universal smartphone adapter is compatible with almost any brand/model of iPhone/Android smartphone (width 55mm-105mm). Made of rigid aluminum alloy, doesn't bend, tilt or warp, holds your cellphone tight and perpendicular to the telescope eyepiece. EVA pads on eyepiece clip and phone clip protect equipment from wear and tear. 1.25 inch phone adapter suitable for 1.25"small eyepieces, 2 inch phone adapter applicable to large eyepiece. The digiscoping adapter can compatible with many telescope, like binoculars, microscopes, monocular telescope. Adjust the eyepiece clip and mobile phone clip to the appropriate position. You can use this mobile phone holder for astronomical observation and animal watching. Specification: Model: SV214 Pro Eyepiece Clamp Range: 28-48mm Phone Clamp Range: 55-105mm Fine Adjustment Style: 3–Axis Phone Clamp Style: Easy load with internal spring Materials: Fully Metal Compatible Optics: Telescope, Binocular, Spotting Scope and Monocular Package Includes: 1XSV214 pro universal smartphone adapter; 1Xmanual; 1Xremote controller; 1Xhand strap. SVBONY SV135-This is definitely a must for beginners to start a good eyepiece collection.with this eyepiece, you can enjoy planetary astronomy .As a beginner; SV135 is good for starter astronomer! Zoom from low to high power in an instant with SV135 versatile eyepiece Zoom Eyepiece; 7mm-21mm linear continuous zoom; give you more flexibility with out changing eyepieces;Very easy to use and very smooth operation. 1.25" barrel size; Compatible with any telescope that accepts 1.25" eyepieces;1.25" aluminum barrel is threaded for filt