[VERSATILE COMPATIBILITY] This 1.25 inch to C CS mount adapter is designed to fit any telescope with a C mount (male thread) and a 1.25 inch eyepiece tube. for connecting your telescope to C mount or CS mount camera lenses, making it ideal for astronomy photography and telescope eyepiece changers. Its universal design ensures seamless integration with various telescope accessories.
[ MATERIAL] Crafted from black anodized aluminum alloy, this adapter is built to last. The durable material is wear- and lightweight, ensuring long-term performance. The fully threaded interior minimizes reflections of stray light, providing clear and sharp images for your astronomy observations and photography.
[PRECISE THREAD SPECIFICATIONS] Featuring an external thread specification of M25x0.75mm (C mount/CS mount thread) and an internal thread specification of M28.6x0.6mm, this adapter offers precise and secure connections. The external thread depth is 5mm (0.2in), and the internal thread depth is 4mm (0.16in), ensuring a tight fit for your telescope and camera lenses.
[OPTIMAL SIZE DESIGN] With an outer diameter of approximately 1.25 inches (31.6mm±0.1mm) and an overall length of 30mm (1.2in), this adapter is compact yet robust. Its size makes it easy to handle and install, while the precise measurements ensure compatibility with a wide range of telescope and camera accessories.
[MULTI FUNCTIONAL USE] The 1.25 inch mount is suitable for filters, focus reducers, and extenders, enhancing your telescope's functionality. Whether you're a professional astronomer or a hobbyist, this adapter is a must-have accessory for upgrading your telescope setup and achieving high-quality images for your astronomy projects.

Spec:
Item Type: 1.25 Inch Mount to C CS Mount Adapter
Material: Aluminum Alloy
External Thread Specification: M25x0.75mm (Commonly Known As: C Port/CS Port Thread)
External Thread Depth: Approx. 5mm / 0.2in
Internal Thread