Gskyer 4067534 Telescope, EQ901000 Astronomy Telescope, German Technology Refractor Telescope It adopts excellent Optics research technology. The transmittance of lens is as high as 99.7%. all the lenses have multiple broadband coating film, which reduces the stray glare and ghosting effectively. The eye lens is made from aluminum alloy and big-caliber non-dispersive and superior optical glass-zf4. The lens is plated with multi-layer Green film so as to reach high definition, bright image and true color rendition without damaging the vision The aluminum alloy lens barrel is firm and durable owing to adopting antioxidant high-temperature Powder painting. And the service life is longer; angular field of view: 58" 360 degree free rotary equatorial telescope can realize auto track, accurate positioning and easy operation, which makes you observe the target in multiple degrees easily The hoop Plus dovetail board structure released rapidly is mounted simply. It can be completed without using tools. The thickened molds mildews tripod is firm, stable AND durable. The height can be adjusted to a proper degree for you observing the Star better