3-Element Apochromatic Lens - Superior sharpness and color correction, optical components, real physical computing magnification. | Compatible with most 1.25- Inch diameter telescope eyepieces, eyepiece filters, DSLR camera and other T-thread type accessories. | It not only increases the magnification, the image will be clearer than the average increase in magnification up to 15 times the image clarity. | Essentially triple the power of any 1.25" telescope eyepiece with the universal Barlow Lens. Suitable for high contrast, high power applications in any telescope. | High quality Barlow. Bayonet SLR cameras can be connected to increase the multiples of the camera to take pictures.

Threaded for standard 1.25- inch astronomy filters and barlow lens. | Comes with sturdy plastic case-proect the eyepiece from dust and moisture. | 1.25- inch 15mm plossl eyepiece set , gives the widest viewing field along with extra sharpness and long eye relief. | 4-element plossl design, has a approx 52 degree AFOV. Perfect for broad-field lunar observations, medium-sized star clusters, and a wide range of cloudy nebulas and deep-sky targets. | Fold-down rubber eyeguard Threaded for standard 1.25- inch astronomy filters.