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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 (125 items)
Limited Time SaleUntil the end
20
08
23
$38.48 cheaper than the new price!!
Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Free cash-on-delivery fees for purchases over $99
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New $64.14
Product details
| Management number | 219373263 | Release Date | 2026/05/03 | List Price | $25.66 | Model Number | 219373263 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
=========High-concerned chemical : None
- Made optical glass with precision polishing, ensuring stable performance and long service life.
- This 73mm diameter achromatic doublet objective lens, available in 280mm and 316mm focal lengths, is a professional accessory for DIY astronomical telescopes.
- Achromatic cemented structure effectively corrects chromatic aberration, delivering sharp observation.
- Made optical glass with precision polishing, ensuring high light transmittance, low distortion and stable optical performance.
- Two focal lengths satisfy different observation and assembly needs, perfect for homemade refracting telescopes and modification projects.
- Standard size and reliable design ensure easy installation, ideal for astronomy enthusiasts to build and upgrade telescopes.
| Item Weight | 1.76 ounces |
|---|---|
| Manufacturer | Generic |
| Item model number | OBFBBACNA-28152FB8 |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Manufacturer recommended age | 1 - 1 months |
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