Astronomical Telescope, Pro 400/70 FMC Refractor Telescopes with Adjustable Tripod & & Finder Compass Portable Travel Telescope Perfect Portable Scope for Adult Children Teens Specifications Optical Design: Refractor Aperture: 70mm(2.75in) Focal Length: 400mm(15.75in) Resolution: 3 secs Focal Ratio: F5.7 Finderscope: 5*24 Zenith Mir...
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