Optolong 1.25" L-Enhance Dual Narrowband Light Pollution Filter (H-Alpha and H-Beta/O-III)
4.0 (25 items)
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Product details
| Management number | 215171904 | Release Date | 2026/04/12 | List Price | US$88.77 | Model Number | 215171904 | ||
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L-eNhance is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and CCD cameras. The convenience and cost effectiveness of this filter allows amateurs to image a rich selection of astronomical images, even in bright, heavily light-polluted areas. Optolong believes the design of our L-eNhance filter is a technical innovation among filters. It effectively isolates the H-Alpha, H-Beta, and Oxygen III nebula emission lines and achieves a maximum transmission of up to 90%. The performance of this filter delivers images that superbly control the impact from light polluted skies. L-eNhance Filter Spectrum Curve: According to the characteristics of celestial body emission lines and feature of light pollution span of spectrum, Optolong specially designed and optimized dual-band L-eNhance filter in order to retain the prominent color of nebula RGB while blocking out most of light pollution. Technical Data: 1. Substrate: B270 2. Thickness: 1.85mm 3. Треак: Т>90%. 4. Blocking range: 300-1000nm 5. Blocking depth: light pollution line blocking >99% 6. Surface quality: 60/40 7. Transmitted Wavefront RMS: 1/4 8. Parallelism (arcsec): 30s Package Includes: OPTOLONG 1.25"L-eNhance Filter*1
| Item Weight | 1.13 ounces |
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| Manufacturer | Optolong |
| Item model number | L-eNhance-1.25 |
| Product Dimensions | 1.25 x 1.25 x 0.04 inches |
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