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Objective Lens， Optical Glass Achromatic Doublet Objective Lens 73mm Focal Length 330mm Red Film DIY Astronomical Telescope Accessories,for Doublet Convex Lens
4.0 (77 items)
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42
16
US$41.66 cheaper than the new price!!
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Used US$27.77
Product details
| Management number | 219365105 | Release Date | 2026/05/03 | List Price | US$27.77 | Model Number | 219365105 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
=========High-concerned chemical : None
- Made optical glass with precision polishing, ensuring stable performance and long service life.
- 73mm aperture achromatic doublet objective lens with 330mm focal length, featuring red coating for DIY astronomical telescopes.
- Red anti-reflection coating improves light transmittance, reduces reflection and stray light for brighter viewing.
- Achromatic cemented design effectively corrects chromatic aberration, delivering sharp and high-contrast celestial images.
- Made optical glass with fine polishing, ensuring low distortion and stable optical performance.
- Standard size for easy installation, perfect for DIY refracting telescope assembly, repair and upgrade.
| Item Weight | 1.76 ounces |
|---|---|
| Manufacturer | Generic |
| Item model number | OBFBVDDNA |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Manufacturer recommended age | 1 - 1 months |
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