【Long Lens Life】This Barlow lens adopts aluminum alloy body, black anodized surface, precision processing, stable and for long-term use. 【Compatible With DSLR or SLR Camera】This telescope lens uses an M42 x 0.75mm thread to be used as a T-type adapter, and can be connected to a DSLR or SLR camera through a separate ring adapter. 【Multiple Magnification, Clearer】This astronomical telescope lens uses a 5X 1.25-inch interface magnification, which can increase the magnification of any 1.25-inch eyepiece and provide a comfortable viewing experience. It allows you to observe the of the moon and other planets more closely and in more detail. 【No Color Difference】The multilayer coated optical lens provides high-quality observation without additional chromatic aberration, making the image clearer and clearer. 【Easy to Use】Just insert the eyepiece into the Barlow scope, and then insert the Barlow scope into the scope.