Shangxing(尚兴) 63Mm Cemented Doublet Achromatic Biconvex Lens Focal Length 210Mm Double Convex Focusing Wavelength 400~700Nm

Shangxing(尚兴) 34Mm Telescope Cemented Doublet Objective Lens Achromatic Diy Optical Lenses Focal 118 512Mm(34F512g)

Shangxing(尚兴) 19.5Mm Cemented Doublet Achromatic Plano-Convex Lens Focal Length 220Mm

Shangxing(尚兴) 40 41 42 44 46Mm Telescope Cemented Doublet Objective Lens Achromatic Optical Lens Focal Length 100Mm-584Mm(40F205b)

Shangxing(尚兴) 75Mm Telescope Cemented Doublet Objective Lens Achromatic Biconvex Optical Lenses Focal Length 350Mm