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 3X Barlow lens for 32X -240X magnification.It features multi-fully high transmission coated all-optical lens to protect your eyes. Great telescope for adults, kids and beginners to use | Easy to Assemble and Use:The telescope is designed to be user-friendly , it can be set up quickly without additional tools.You can find a lot of fun in assembling and develop the child's hands-on and observation skills.It comes with a detailed illustrated manual for easy set up and use | Sturdy Tripod:It comes with a sturdy stainless steels tripod made from high-quality materials. It can hold the telescope firmly in place, making it easier to focus on your subjects.Adjustable tube rings make the telescope more stable and avoid wobbling.This telescope is built to last and can withstand years of use | Satisfaction:Believe in DIANFAN and choose DIANFAN telescope.Contact us if you encounter any problem, we promise you will get a satisfactory answer within 24 hours