Telescopic adapter ring for astronomical telescopes. Aluminium alloy frame. M42 to M48 connection. 0.75 thread essential for telescope applications. Durable, stable frame designed for regular use. Specifically designed for astronomical telescopes, enabling seamless connection between different components. With precise threading and a sturdy frame, it provides a reliable solution for telescopic setups. Key benefits: - Functionality: connects M42 to M48 components smoothly - Compatibility: suitable for M42 to M48 connections - Material and build: aluminium alloy frame for durability and stability - Performance: 0.75 thread optimized for astronomical telescope applications - Reliability: precise thread and rigid frame ensure secure, repeatable connections Use scenarios: - Use to adapt between M42 and M48 threaded components on an astronomical telescope - Attach accessories or imaging hardware that use alternate threads within the M42–M48 system - Field setup for stable, quick assembly during observing or astrophotography sessions