Gskyer 70mm Astronomical Refractor Telescope This 70x400mm refractor telescope can be a good observation of lunar and planetary. Featuring all coated glass optical components. Provides clean, crisp views. Developed with the traveler in mind, this travel telescope features a compact and portable design perfect for the on-the-go sky gazer. Specification: ● Type: Refractor ● Objective Lens: 70mm(2.75″) ● Focal Length: 400mm(f/5.7) ● Mount: Altazimuth ● Eyepiece: Low: 25mm(16X), High:10mm(40X) ● Barlow lens: 3X ● Max Magnification: 120X ● Finderscope: 5×24 with cross-hair lines ● Zenith Mirrors: 48°Erecting BAK4 prism ● Tripod: 65cm(31.5″) height adjustable Aluminum tripod Warm Tips: ●If it shows a blurred picture, please adjust focus using focus wheel. ●When observing an outdoor target with an astronomical telescope indoors, do not close the window to avoid the deformation of the image caused by the reflection of the window glass. ●Use a telescope outdoors, please wait for the temperature of the product is the same as the outdoor temperature, the performance will be better. ●Avoid accidentally taking the telescope into a larger temperature difference environment because the moisture in the air will condense on the objective. ●NEVER aim your telescope at the sun or even close to the sun!