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70mm Objective Lens Holder metal Material Suitable For Astronomical Telescope Accessories

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Diana high-quality 6-24x50AOE optical telescope, equipped with red and green illumination and cross hairs, suitable for outdoor

70mm Achromatic Objective Lens Focal Length 300 360 400 500 700 800 900mm for Astronomical Telescope DIY Refractor Accessories

Objective lens and lens frame D80/400/500/600/700/900, Lens holder Base , Lens Hood Astronomical Telescope Diy Accessories

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