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Objective Lens， 50 51 52 53 57 58mm Cemented Doublet Objective Lens Achromatic Optical Focal Length 182mm-987mm DIY Refraction Telescope,for Doublet Convex Lens(51F225)
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Product details
| Management number | 219373094 | Release Date | 2026/05/03 | List Price | $40.00 | Model Number | 219373094 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
=========High-concerned chemical : NoneModel Number : YT102319121Diameter : 50 51 52 53 57 58mmfocal length : 182mm-987mm
- Made optical glass with precision polishing, ensuring stable performance and long service life.
- This cemented doublet objective lens is available in 50/51/52/53/57/58mm diameters, with focal lengths from 182mm to 987mm, designed for DIY refracting telescopes.
- The achromatic optical structure effectively corrects chromatic aberration, delivering sharp, high-contrast images for clear astronomical observation.
- Made optical glass with fine polishing, it ensures high light transmittance, low distortion and stable long-term performance.
- Multiple sizes and focal lengths offer flexible choices for telescope assembly, modification and upgrading to meet different observation needs.
- Standard structure and good compatibility make installation easy, ideal for astronomy enthusiasts to build and improve refracting telescopes.
| Item Weight | 1.76 ounces |
|---|---|
| Manufacturer | Generic |
| Item model number | OBFBVOMEV-CF688ACD |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Manufacturer recommended age | 1 - 1 months |
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