GOR F300 70M Astronomical Land and Sky Refractor Optical Glass Metal Tube Telescope
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- Magnification: 150x, 75x, 22.5x, 45x, 50x, 15x
- Focal Length: 300mm. f/4 Aperture: 70mm
- Hybrid Diagonal: 90°
- Material: Aluminum alloy
- Tripod Height: Max. 38cm / 15in
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This telescope is for the amateur astronomers to use, if you are very professional astronomical researcher, we don't suggest this one. Refractive astronomical telescope with 70mm aperture and 300mm focal length. Coated glass optics for enhanced image brightness and clarity. Multiple interchangeable eyepieces with 1.5X erecting eyepiece and 3X barlow lens for increased viewing capability. 150X maximum magnification brings the distant scenery to your eyes. Easy assembly with no tools required. Aluminum alloy construction, lightweight and portable, good choice for beginning astronomer. Specifications: Material: Aluminum alloy Aperture: 70mm Focal Length: 300mm Max Magnification: 150X Hybrid Diagonal: 90° Eyepiece: H6mm, H20mm Tripod Height: Max. 38cm / 15in Package Size: 46 * 22 * 11cm / 18.1 * 8.7 * 4.3in Package Weight: 1596g / 3.5lb Package List: 1 * Telescope Main Tube 1 * H6mm Eyepiece 1 * H20mm Eyepiece 1 * 3X Barlow Lens 1 * 1.5X Erecting Eyepiece 1 * Tripod 1 * Adjustable Lever 1 * User Manual Installation sequence: 1. Put up tripod, then attach the lens tube. 2. After the tube is fixed, install the finderscope (for preliminary search of the target object), then install the eyepiece (choose one from the two). 3. After find out the big goal, then debug with different eyepieces. Note: 1. Multiples of course are not the only, and it depends on the combination of factors aperture and focal length. (For example, if the window is big, the natural light is good, and the view is clear.) 2. When use 3X Barlow lens, installed Barlow lens first, and then install the eyepiece. ( When install the Barlow lens, we need to move out the lid on the installation device of eyepiece.) 3. We just can choose one eyepiece to install at the same time, so does the Barlow lens.
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|Item Weight||—||450 grams||1.4 kg||1.5 kg|
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2. It also suffers problem of chromatic aberration.
3. When mounted on the tripod stand it cannot be moved beyond 45 degrees, the stars over your head cannot be seen through this telescope.
.... Not satisfied with the product.