- Fits most Android smartphones: phone adapter supports almost all brands/models with width 2.36-3.44 inches (60-87.5 mm), regardless of phone design or camera weight. It accommodates eyepieces (outer diameter 0.86-2.4 inches / 22-61 mm) of most telescopes, spotting scopes, monoculars and microscopes. - Patent-pending 3-axis design (upgrade from Accuview): precise adjustment in up/down, left/right, and forward/back directions to align the phone camera with the eyepiece. The Z-axis eye relief adjustment helps you find a comfortable, clear view for sharp images and videos of celestial objects, wildlife and distant subjects. - High-precision fine adjustment: easy-to-reach fine tuning knobs enable razor-sharp alignment with the lens. Firm grips hold both the phone and eyepiece securely in place. - All-metal construction: rigid aluminium alloy ensures no sagging or warp. Keeps the phone perpendicular to the telescope eyepiece, maximizing stability and minimizing shake during setup. Rubber pads on the eyepiece clip and phone clamp protect devices from abrasion. - Versatile compatibility and use cases: works with most telescopes, spotting scopes, monoculars and microscopes. Ideal for digiscoping on birding or wildlife trips, astronomy and stargazing, and educational or fieldwork using a microscope or monocular. - Benefits at a glance: broad compatibility, stable mounting, precise alignment, and durable construction enable you to capture clearer images and videos of distant objects with your smartphone.