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Objective Lens， 82.5mm 83mm Cemented Doublet Lens F316 F500 F720 F900 Optical Achromatic Telescope Objective Focal Length 316 500mm,for Doublet Convex Lens(82.5F316G)
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US$42.58 cheaper than the new price!!
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Used US$28.38
Product details
| Management number | 219364971 | Release Date | 2026/05/03 | List Price | US$28.38 | Model Number | 219364971 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
=========High-concerned chemical : None
- Made optical glass with precision polishing, ensuring stable performance and long service life.
- This 82.5mm & 83mm cemented doublet lens provides focal lengths of 316mm, 500mm, 720mm, 900mm, used as an achromatic objective for astronomical telescopes.
- The cemented doublet optical design effectively reduces chromatic aberration and delivers sharp, high-contrast images.
- Made optical glass with fine polishing, it ensures stable performance, low distortion and high light transmittance.
- Multiple focal length options satisfy different observation needs, suitable for DIY telescope assembly and upgrading.
- Standard caliber and reasonable structure make it easy to install and match various astronomical telescope systems.
| Item Weight | 1.76 ounces |
|---|---|
| Manufacturer | Generic |
| Item model number | OBFBVVCBV-40BDF776 |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Manufacturer recommended age | 1 - 1 months |
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