RMS 20mm to M42 x 1mm Lens Adapter, black Use this allmetal adapter to mount standard RMS microscope objectives onto M42 threaded camera or accessory systems. The adapter provides a secure, removable threaded connection so you can use microscope lenses for photography, macro imaging, or custom optical setups. Key benefits Enables compatibility: accepts microscope objectives with standard RMS microscopy society thread at the female end and converts to a male M42 x 1mm thread for connection to M42 adapters or mounts. Secure and removable: precision metal threads hold the objective firmly during use while allowing easy removal when you need to change lenses. Reliable construction: metal body and matchcut threads give repeatable alignment and stable mechanical connection for imaging and experimental setups. Compact size: designed around the RMS 20mm interface for a minimal optical extension and easy integration into existing rigs. Important attributes Function: adapter converts RMS female thread to M42 x 1mm male thread. Compatibility: fits microscope objectives with the standard RMS microscopy society thread and mates to M42 threaded accessories or camera adapters. Size: RMS interface approximately 20mm; output thread M42 x 1mm. Material and finish: allmetal construction, black finish for reduced reflections and a professional appearance. Performance: precision threading for stable mounting and repeatable positioning of microscope objectives. Typical applications Photomicrography: attach a microscope objective to an M42 camera adapter or camera body with an M42 interface for direct imaging through quality microscope optics. Macro and closeup photography: use microscope objectives on M42equipped extension tubes or bellows to capture extreme macro detail with magnification. Optical prototyping and lab setups: integrate RMS objectives into custom rigs, educational demonstrations, or test benches that use M42 threaded components. Installation notes Thread the objective into the RMS female end until seated; then attach the M42 male thread to your M42 adapter or mount. Hand tighten to secure; avoid excessive force to protect threads. This adapter provides a straightforward mechanical solution for using RMS microscope objectives in systems that accept M42 threads, offering a durable, precise connection without permanent modification to lenses or cameras.