- 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 SS tripod is firm, stable and durable. The height can be adjusted to a proper degree for you observing the star better
Telescope Specification Aperture ：90mm（3.54 in) Focal Length ： 1000mm(39.37 in) Focal Ratio ： F11.1 Eyepiece1 ： 25mm(0.98 in) Magnification1 ： 40X Eyepiece2 ： 10mm(0.39 in) Magnification2 ： 100X Eyepiece3 ： 5mm(0.2 in) Magnification3 ： 200X Max Magnification ： 600 Finderscope ： 6*30 Zenith Mirror ： 48° Erecting Prism Mount ： EQ Advanced Equatorial Mount Optical Coating ： Multi Antireflection Blue Film Barlow lens ： 3X Resolution : ≤2.9 Angular Field of View : 58" Tube Connection : Hook,Dovetail Plate Tripod ： 1.27 inch Stainless Steel Tripod Product Description Gskyer Infinity have over 20 years Optical history,Use of Germany's advanced technology, for different groups of people from different telescopes for science, astronomy, exploration, and tourism, etc.Gskyer's value priced EQ90 is an affordable entry level telescope with some nice extras like a correct image prism.