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) Black S8207 M56*0.75, M52*0.75 Internal Thread To M54*0.75 Internal Thread Adapter

Shangxing(尚兴) 20Mm Hoe Circular Holographic Diffraction Grating Sheet 200-2000Nm 50-600 Lines Optional(500 Lines)

Shangxing(尚兴) 114 150 203Mm Spherical Concave Reflective Mirror Schlieren Experiment Diy Reflector Optical Lens 500-1600Mm Focal Length(160F1300)