M54 Gender Changer / Inverter Ring

The Baader M54 Gender Changer/Inverter Ring converts M54 male threads to M54 female threads, enabling astronomers to adapt threaded components in imaging trains and telescope systems. Constructed from hardened stainless steel with a compact 7mm optical path length, this adapter features a non-reflecting grooved interior painted flat black to minimize internal reflections. Essential for M54-threaded astrophotography systems where standard adapter thread direction needs to be inverted, it integrates seamlessly between M54 internal threads without jamming risk.