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Objective Lens， Optical Glass Achromatic Doublet Objective Lens 73mm Focal Length 280mm 316mm DIY Astronomical Telescope Accessories,for Doublet Convex Lens(280mm)
4.7 (51 items)
Limited Time SaleUntil the end
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56
18
US$39.50 cheaper than the new price!!
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Used US$26.34
Product details
| Management number | 219365100 | Release Date | 2026/05/03 | List Price | US$26.34 | Model Number | 219365100 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
========High-concerned chemical : None
- Made optical glass with precision polishing, ensuring stable performance and long service life.
- 73mm diameter achromatic doublet objective lens, available in 280mm and 316mm focal lengths, specially designed for DIY refracting astronomical telescopes.
- Achromatic optical structure effectively corrects chromatic aberration, providing sharp and deep sky observation.
- Made polished optical glass with anti-reflection coating, ensuring high light transmittance and low distortion.
- Precise grinding and stable cemented process make it durable and reliable for long-term use.
- Standard size with good compatibility, perfect for telescope assembly, replacement and upgrading for astronomy enthusiasts.
| Item Weight | 1.76 ounces |
|---|---|
| Manufacturer | Generic |
| Item model number | OBFBBACMB-28152FB8 |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Manufacturer recommended age | 1 - 1 months |
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