
( Brand: Baader Planetarium ), ( Manufacturer Part Number: 2458425 ), ( Part Type: Filter )
The Baader Planetarium H-beta Filter FHBN-1 is a high-quality, narrowband filter designed specifically for astrophotography enthusiasts. With a transmission bandwidth of 8.5 nanometers centered at 486.1 nanometers, this filter allows for the capture of H-beta emission lines, which are particularly strong in objects like nebulae and emission stars.
The filter is made of Schott B270 glass, known for its excellent transmission and low absorption properties. It features a 1.25-inch thread for easy attachment to your telescope or camera, and its high-density multi-coating ensures minimal reflection and scattering of light to maximize contrast and image quality.
The Baader FHBN-1 is also designed to filter out unwanted light pollution, which can significantly improve your deep-sky imaging. Its narrowband design allows it to isolate specific emission lines, providing a richer and more detailed view of celestial objects.
The filter is resistant to scratching and is easy to clean, ensuring that it will last for many years of use. It is also compatible with both 1.25-inch and 2-inch focal adapters (sold separately), making it a versatile addition to any astrophotography setup.
In summary, the Baader Planetarium H-beta Filter FHBN-1 is a must-have tool for any serious astrophotographer. Its narrowband design, high-quality materials, and versatile thread size make it an excellent choice for capturing the finest details in nebulae, emission stars, and other deep-sky objects.
Pros of buying Baader Narrowband Beta 8.5nm Filter 1.25 FHBN-1 Planetarium H-beta:1. High Transmission: This filter has a high transmission rate for the H-beta line, allowing you to capture detailed images of emission nebulae.
2. Narrowband: The 8.5nm bandwidth ensures minimal light pollution and allows for better contrast and detail in your images.
3. Quality Material: Baader filters are known for their high-quality materials and construction, ensuring durability and reliability.
4. Compatibility: The 1.25-inch thread makes it compatible with most telescopes.
Cons of buying Baader Narrowband Beta 8.5nm Filter 1.25 FHBN-1 Planetarium H-beta:1. Expensive: Compared to other filters, this one is quite pricey due to its high-quality materials and narrowband specifications.
2. Limited Use: This filter is primarily used for emission nebulae, so its use may be limited depending on your observing interests.
3. May Require Modification: If you have an older telescope, you may need to purchase a 1.25-inch adapter to make it compatible with this filter.
Conclusion: The Baader Narrowband Beta 8.5nm Filter 1.25 FHBN-1 Planetarium H-beta is a high-quality filter that provides excellent detail and contrast in images of emission nebulae. While it is expensive, the investment in this filter can result in stunning images. If you are primarily interested in observing emission nebulae and have the budget for it, this filter is an excellent choice. However, if you are on a budget or have other observing interests, there may be other filters that are more suitable for your needs.
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Their ultra-narrow band width s have extremely high transmissions, while completely rejecting light pollution as well the important blocking of longer wave length s.
These are not included in the item price or shipping cost.
This can often change from batch to according the whims of manufacturer.
CDC images will find Baader premium narrowband pass filters to deliver the absolute highest contrast deep sky images in h-alpha, h-beta, oxygen iii, and sulfur-ii, with shortest exposures possible.
The anti-reflection coatings are designed to prevent halos and balanced physical deformation of optically flat substrates.
Each filter is coated individually, permanently sealing the coating edges, in order to guarantee lifetime durability and uniformity. The high optical quality of Baader narrowband filters guarantees no loss in sharpness or contrast.
This can frequently take 4-6 weeks or more for several countries 8 Italy, Argentina, and south Africa Brazil. This cutting operation leaves the coating edges rough and torn which enables penetration of moisture between coatings substrate. To achieve this freedom from reflections, along with excellent out of band blocking, required careful design and testing the coating stacks.
This special custom polishing operation sets Baader filters apart from the standard commercially precision polished filter substrates used by most other manufacturers. Back to top 4.
This can sometimes take 3-4 weeks to several countries.
Each substrate is fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface.