ENHANCED MAGNIFICATION POWER - Seamlessly connect your smartphone to optics with eyepiece outer diameters from 1.2 to 2.3 inches (33-60mm) for superior long-range observation and detailed image capture. OPTIMAL IMAGE QUALITY - Utilize the precise lens clamp thumbscrew for secure alignment, ensuring crisp, clear photos and videos directly from your optical device to your smartphone. BROAD SMARTPHONE COMPATIBILITY - Accommodates a wide range of smartphones with widths from 2.6 to 3.7 inches (66-95mm), providing versatile digiscoping capabilities for various devices. ROBUST DURABILITY - Constructed from high-quality ABS plastic, this adapter offers reliable performance and resilience against the rigors of outdoor use, ensuring lasting functionality.