Objective Lens， D52F200 D52F500 D43F330 Cemented Doublet Glued Convex Lens Achromatic Biconvex Objective Astronomic Telescope,for Doublet Convex Lens(D43F330 Blacked)

=========High-concerned chemical : NoneModel Number : YT1023121Diameter : 52mm 43mmfocal length : 200mm 500mm 330mm

• Made optical glass with precision polishing, ensuring stable performance and long service life.
• These cemented doublet convex lenses include D52F200, D52F500 and D43F330 models, designed as achromatic biconvex objectives for astronomical telescopes.
• The achromatic cemented structure effectively corrects chromatic aberration, delivering sharp, clear and high-contrast images.
• Made optical glass with fine polishing, it ensures high light transmittance, low distortion and stable optical performance.
• Multiple specifications meet different DIY assembly and observation needs, suitable for building and upgrading small astronomical telescopes.
• Standard size and biconvex design allow easy installation, ideal as core optical parts for telescope making and optical experiments.