21.5 23 25 27mm Telescope Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal 24.5-262mm

21.5 23 25 27mm Telescope Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal 24.5-262mm
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sku: 1005007127815510
$9.40-1%
$9.32
Shipping from: China
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