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D30mm Glued Objective Lens - Achromatic Telescope for DIY Astronomy Projects, Multiple...

D70mm Refractive Achromatic Objective Lens for DIY Astronomical Telescope - 400mm Focal...

D60F700 Double Separated Multilayer Blue Film Objective Lens for DIY Refracting Astronomical Telescope

Acrylic Flat Convex Lens with 20-66mm Rim for Flashlight LED Focus Torch...

150mm PMMA Fresnel Lens Acrylic Magnifier Threaded Round Optical Focal 55-200mm(150mmx100mm)

50mm Fresnel Lens PMMA Acrylic Threaded Condenser Focal 28-100mm for LED DIY...

50-100mm Round PMMA Fresnel Lens Threaded Condenser for LED Light Projector VR Optical(D90mm-FL25mm)

Acrylic Flat Convex Lens with 20-66mm Rim for Flashlight LED Focus Torch...

Round Borosilicate Glass Fresnel Lens Spotlight 80-250mm for Stage Lamp Magnifier(D 112mm)

D80mm Glued Green Film Achromatic Objective Lens for DIY Astronomical Telescopes(D80F400 Film)

100mm PMMA Fresnel Lens Solar Concentrator 3X Optical Focal Length 36-120mm(100mm-01)

60x60mm PMMA Square Fresnel Lens, Focal Length 30mm or 50mm, 2mm Thick...

D60mm Glued Objective Lens - 60F410 Fused Blue Coated Achromatic for Astronomical...

Square Fresnel Lens 30x30 40x40 50x50 100x100mm PMMA Acrylic DIY Projector Condenser Magnifier(100x100mm-FL50mm)

50mm Fresnel Lens PMMA Acrylic Threaded Condenser Focal 28-100mm for LED DIY...

1PCS Edged Acrylic Flat-convex Lens Dia 10.5mm-50mm for Flashlight LED Focusing Torch...

Round Fresnel Lens PMMA Threaded Condenser 20-70mm for LED Light Projector VR Optics(D60mm-FL30mm)

Round PMMA Fresnel Lens 20-70mm Threaded Condenser for LED Light Projector VR Optical Experiments,1pcs(D70mmxFL80mm)

50-100mm Round PMMA Fresnel Lens Threaded Condenser for LED Light Projector VR Optical(D100mm-FL40mm)

Short Axis Secondary Mirror for DIY Astronomical Telescopes - Options from 20mm...

D70 70mm Double-Separation Single-Sided Blue Film Telescope Objective Lens with Retaining Ring(D70F360)

50-250mm Fresnel Lens Round Glass Spotlight D50/80/112/130/150/175/200 for Stage Light(D175mmxEFL110mm)

PMMA Flat Convex Acrylic Lens 15-50mm for Zoom Flashlight Bicycle Headlight Replacement

50-100mm Round PMMA Fresnel Lens Threaded Condenser for LED Light Projector VR Optical(D70mm-FL40mm)

60mm Lens with Blue Single Sided Film - Compatible F300~900mm Telescopes 1 Piece (D60F300)

Achromatic Lens with Green Film Glued D80mm for DIY Astronomical Telescopes (D82.5F316 Film)

Square Fresnel Lens 30x30 40x40 50x50 100x100mm PMMA Acrylic DIY Projector Condenser Magnifier(40x40mm-FL40mm)

Round PMMA Fresnel Lens 20-70mm Threaded Condenser for LED Light Projector VR Optical Experiments,1pcs(D60mmxFL60mm)

70mm PMMA Fresnel Lens Threaded Optical for LED Torch Lighting Focal Length 92%(50mm)

10-38mm Flat Convex Aspherical PMMA Lens for Zoom LED Flashlight Bicycle Head...