90 mm Large Aperture: Dianfan telescopes for astronomy has a 800 mm (f/8.8) focal length and 90 mm aperture.Its 90 large aperture provides excellent light-gathering power, delivering sharp and bright images of celestial objects–even in low light conditions.Perfect telescope for astronomers to explore stars and moon High Magnification:The telescope is quipped with two high-quality eyepieces(10 mm /25 mm) and a…