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Objective Lens， 90mm Optical Glass Focal Length 900mm Doublet Optics Double Convex Achromatic Lens DIY Astronomic Telescope Objective,for Doublet Convex Lens
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New $103.95
Product details
| Management number | 219365080 | Release Date | 2026/05/03 | List Price | $41.58 | Model Number | 219365080 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
==========High-concerned chemical : None
- Made optical glass with precision polishing, ensuring stable performance and long service life.
- This 60mm double glued objective lens provides 360mm, 600mm, 700mm and 800mm focal lengths with green film coating, designed for DIY refracting astronomical telescopes.
- The double cemented structure effectively improves achromatic effect, reduces color aberration and ensures clear, high‑contrast imaging for celestial observation.
- Green film coating enhances light transmittance, reduces surface reflection and stray light, bringing brighter and more stable viewing experience.
- Made optical glass with fine polishing, it features low distortion, reliable performance and long service life for homemade telescopes.
- Multiple focal lengths are available to meet different observation needs, perfect for DIY assembly, replacement and upgrade of refracting telescopes.
| Item Weight | 1.76 ounces |
|---|---|
| Manufacturer | Generic |
| Item model number | OBFBVOVOB |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Manufacturer recommended age | 1 - 1 months |
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