Premium Optical Device: Aluminum alloy material is used to make it last longer; perfect for broad-field lunar observations; medium-sized star clusters and a wide range of cloudy nebulae; obtaining better observation results during astronomical journey
50 Degree Field of View: 1.25 inch 4 mm plossl eyepiece set offers a wider 50 degree field of view and a 4 mm focal length for observing larger objects; giving the wider view field along with extra sharpness and long eye relief
Fully Muti-Coated Optical Lens: 4-Element Optical Lens; providing bright; sharp images and excellent color correction and the fully coated groups on each lens surface maximize light transmission; contrast; and image clarity
2X Magnification Power: Astromania 1.25 inch 2x lens barlow when connected to any 1.25 inch telescope eyepiece; will provide a magnification twice that of the eyepiece; delivering a clearer effect for astrophotography
Multi Coated: 3 element lenses with multi coated optics design make image more crisp and sharp which will render exquisite images without introducing additional chromatic abberation; while can maintain true color reproduction even in low light conditions