1. One fits most: The spotting scope phone adapter is compatible with Android smartphones of almost all brands/models (width 2.36 3.44'/60 87.5 mm), regardless of the phone camera's design or weight. This smartphone digiscoping adapter can accommodate eyepieces (outer diameter 0.86 2.4'/22 61mm) from most telescopes, spotting scopes, monoculars, and microscopes. 2. Revolutionary precise 3 axis design (patent pending): (Upgraded from Accuview). The telescopic phone holder features precise 3 direction adjustments—up/down, left/right, forward/backward—to align your smartphone camera with the eyepiece. By fine tuning the Z axis, you can achieve eye relief, capturing the clearest images and videos of celestial objects, wildlife, and distant scenes like never before. 3. precision fine adjustment: Designed and manufactured for razor sharp alignment, this smartphone telescope adapter includes easy to reach fine tuning knobs for accurate adjustments. Its firm grips securely hold both your phone and eyepiece in place. 4. All metal construction, no sagging: Built from rigid aluminum alloy, this universal phone adapter for digiscoping is sturdy and durable, resisting bending, tilting, or warping. It keeps your smartphone perpendicular to the telescope eyepiece, maximizing stability and minimizing shake during setup. Rubber pads on both the eyepiece clip and phone clamp protect your devices from scratches.