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The Astromania H-alpha cut-off filter enhances the contrast between object and sky; allowing you to take good quality images even under urban skies.
| Thread Size | 51 Centimeters |
| Coating Description | No Coating |
| Special Effect | Neutral Density |
| Water Resistance Level | Water Resistant |
| Enclosure Material | metal |
| Screen Size | 2 Inches (5.1 cm) |
| Compatible Devices | Telescopes with 1.25-inch eyepiece |
| Media Type | ProductImage |
| Brand | Astromania |
| Manufacturer Part Number | SKU_AM_HF21X |
| Item Weight | 0.5 Ounces (14.18 grams) |
| Manufacturer | Astromania |
| Model Number | SKU_AM_HF21X |
| Item Dimensions L x W | 2"L x 2"W (5.1 cm) |
| Material | metal |
| Photo Filter Thread Size | 51 Centimeters |
| Photo Filter Effect Type | Neutral Density |
| Product Dimensions (L x W x H) | 2"L x 2"W (5.1 cm) |
Ideal for stargazers who focus on deep sky imaging, capturing stunning details in hydrogen-alpha light.
Great for advanced hobbyists who want to enhance their telescopes for better nebula observation and photography.
Perfect for those specifically interested in studying and photographing H-alpha rich targets like emission nebulae.
Not suitable for casual users who prefer simpler views without the need for specialized filters.
Astromania 1.25" Narrowband NBPF Hydrogen-a 12nm Filter - deep Sky Photos in H-Alpha Light
The Astromania 2" Narrowband NBPF Hydrogen-a 12nm Filter has garnered mixed reviews from amateur astrophotographers and telescope enthusiasts. While many users appreciate the filter's ability to capture deep-sky images in H-Alpha light effectively, initial experiences with the product's threading and fitting have raised concerns. Several reviewers have experienced issues with the threading on the filter, particularly on the female side. One user highlighted that the retaining ring is thicker than ideal, which limits the amount of threaded connection available when attaching adapters. This has led some users to suggest modifications to enhance usability, such as sanding down the retaining ring to improve attachment compatibility. Despite these initial setup hurdles, many customers report satisfaction with the filter's performance after resolving the connection issues. It's noted for its ability to block visible band light effectively while maintaining a strong transmission at the desired 656nm wavelength. Some users found that additional filters, like UV/IR cut filters, are necessary to achieve the best imaging results and avoid issues like bloated star images caused by near-infrared transmission. Overall, the Astromania H-alpha filter is recognized as a good value for the price, especially for those focused on narrowband astrophotography. Its performance can be impressive when combined with other filters to create stunning layered images of nebulae and other celestial objects, provided users are ready to navigate its initial compatibility challenges. **
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Order now and get it around Wednesday, September 02
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