[Enhanced Observation] Featuring an internal thread of m28.6x0.6mm this eyepiece allows for effortless installation of various astronomical filters such as lunar and nebula filters. these filters enhance your viewing experience by providing clearer and more detailed images of celestial bodies like the moon and nebulae making your astronomical observations more immersive.
[Universal Compatibility] The 1.25 inch sr4mm eyepiece is designed with a standard outer diameter of 31.5mm ensuring seamless compatibility with most astronomical telescopes. whether you are a beginner or a seasoned astronomer this eyepiece meets all your ​​ needs with its versatile design and high performance capabilities.
[Durable Construction] Built from ​ aluminum alloy this eyepiece is both lightweight and rugged offering excellent durability and ​ resistance. its fine craftsmanship ensures long lasting performance making it a reliable accessory for all your astronomical adventures. enjoy ​​ with a product designed to last.
[Easy Installation] The sr4mm eyepiece is designed for quick and hassle ​ installation. simply screw it into your telescope interface and rotate the fixing screw to secure it in place. this user friendly design makes it ideal for all levels of astronomers from beginners to professionals ensuring a smooth setup every time.

Spec:
Item Type: 1.25 Inch SR4mm Eyepiece
Material: Aluminum Alloy, Optical Glass
Interface Size: 31.5mm / 1.2in
Eyepiece Structure: Ramsden Eyepiece
Magnification ​​ Length: 4mm / 0.2in

Package List:
1 x Storage Box
1 x 1.25 Inch SR4mm Eyepiece

How To Use:
Install and use