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Objective Lens， 21 22 46 52 Mm Double Cemented Achromatic Convex Objective Lens DIY Professional Refractor Astronomy Telescope Accessories,for Doublet Convex Lens(D22mmF80mm)
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US$31.94 cheaper than the new price!!
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Used US$21.30
Product details
| Management number | 220703680 | Release Date | 2026/05/03 | List Price | US$21.30 | Model Number | 220703680 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
========Material : Glass
- Made optical glass with precision polishing, ensuring stable performance and long service life.
- These double cemented achromatic convex objective lenses are available in 21mm, 22mm, 46mm and 52mm diameters, ideal for DIY professional refracting astronomical telescopes.
- Adopting an achromatic cemented structure, they effectively correct chromatic aberration, delivering sharp, high-contrast celestial images.
- Made optical glass with fine polishing, ensuring high light transmittance, low distortion and stable optical performance.
- Multiple aperture sizes offer flexible choices for different telescope builds, assembly and upgrade projects.
- Standard specifications and reliable craftsmanship ensure easy installation, perfect for astronomy enthusiasts and professional optical DIY projects.
| Item Weight | 1.76 ounces |
|---|---|
| Manufacturer | Generic |
| Item model number | OBFBVCNVD-A4E3A671 |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Manufacturer recommended age | 1 - 1 months |
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