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Baader H-Alpha 7nm Narrowband Filter - 50.8mm Round Unmounted - FHALN-RD50

Baader Planetarium   ——   SKU: BAA-FHALN-RD50
$461.55 CAD
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About the Baader H-Alpha 7nm Narrowband Filter - 50.8mm Round Unmounted...

Delivering the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III, and Sulfur-II, Baader Planetarium'''s Premium Narrowband CCD passfilters, like the Baader H-Alpha 7nm Narrowband Filter are a must have when it comes time to excellent photography and observation. With the shortest exposures possible, the ultra-narrow bandwidths have extremely high transmission while completely rejecting light pollution and blocking longer wavelengths. Baader'''s high optical quality narrowband filters guarantee no loss in sharpness or contrast making it a superb filter that is a must have for enthusiasts collections.

 

Delivering a smooth and accurate 1/4 wavefront over the entire surface, each substrate is fine-optically polished delivering exceptional performance. The special custom polishing operation Baader executes on all Baader H-Alpha 7nm Narrowband Filters is the difference when comparing standard commercially precision polished filter substrates most all other filter manufacturers use.

 

In the production process of the Baader H-Alpha 7nm Narrowband Filter consideration of eliminating the annoying reflections present in other narrowband astro-filters was a key component in the creation. In order to succeed in assuring freedom from reflections, Baader'''s production process required careful design and testing of the coating stacks to ensure such excellence amongst each narrowband passfilter.

 

The applications of coatings on all Baader products, like the Baader H-Alpha 7nm Narrowband Filter, are professionally applied in Germany by the most sophisticated equipment available today. This application process ensures high consistency for bandpass centering, out of band blocking, and transmission. These anti-reflection coatings are designed to avoid halos as well as balanced to prevent physical deformation of optically flat substrates. Baader'''s Narrowband CCD passfilters have ultra-hard ionbeam deposition which ensures coatings to never degrade from use or normal cleaning.

 

 

Baader H-Alpha 7nm Narrowband Filter - 50.8mm Round Unmounted Features...

 

  • With the shortest exposures possible, the ultra-narrow bandwidths have extremely high transmission while completely rejecting light pollution and blocking longer wavelengths

     

     

  • Anti-reflection coatings are designed to avoid halos as well as balanced to prevent physical deformation of optically flat substrates

     

     

  • Delivering a smooth and accurate 1/4 wavefront over the entire surface, each substrate is fine-optically polished delivering exceptional performance

     

     

  • Baader'''s Narrowband CCD passfileters have ultra-hard ionbeam deposition which ensures coatings to never degrade from use or normal cleaning

     

     

  • High optical quality narrowband filters guarantee no loss in sharpness or contrast making it a superb filter that is a must have for enthusiasts collections

 

 

Baader H-Alpha 7nm Narrowband Filter - 50.8mm Round Unmounted Specifications...

Filter Type: H-Alpha

Purpose: Photographic

Format: Round, Unmounted

Size: 50.8mm

Threaded: Yes

Passband: 7nm

Coatings: Anti-reflective

Baader Planetarium Product Number: FHALN-RD50

 

Customer Note: This is a photographic filter only and is NOT intended for safe solar viewing!