Alpine Astronomical Baader H-alpha Narrowband Filter (1.25" Eyepiece Filter Filter)
Alpine Astronomical FCHALN-1 Overview
This 1.25" Eyepiece Filter Baader H-beta Narrowband Filter, from Alpine Astronomical, is a 6.5nm FWHM filter recommended for optical systems from f/10 to f/3.5. It features a Reflex-Blocker hard coating, which has been planeoptically polished, and has Life-Coat sealed coating edges. It is equally suitable for modern CMOS sensors as well as for older CCD camera technologies.
- Reflex-Blocker coatings offer largest ever freedom from halos, even under most adverse conditions concerning aux-optics
- Identical filter thickness to existing standards, with utmost care for parfocality
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
- Each filter coated individually, with sealed coating edge (not cut out of a larger plate with coatings left exposed)
- Life-Coat: evermore hard coatings to enable a non-aging coating for life - even in a most adverse environment
Alpine Astronomical FCHALN-1 Specs
| Package Weight | 0.13 lb |
| Box Dimensions (LxWxH) | 3.15 x 2.95 x 0.95" |
Alpine Astronomical FCHALN-1 Reviews
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Alpine Astronomical Baader H-alpha Narrowband Filter (1.25" Eyepiece Filter Filter)
Alpine Astronomical FCHALN-1 Overview
This 1.25" Eyepiece Filter Baader H-beta Narrowband Filter, from Alpine Astronomical, is a 6.5nm FWHM filter recommended for optical systems from f/10 to f/3.5. It features a Reflex-Blocker hard coating, which has been planeoptically polished, and has Life-Coat sealed coating edges. It is equally suitable for modern CMOS sensors as well as for older CCD camera technologies.
- Reflex-Blocker coatings offer largest ever freedom from halos, even under most adverse conditions concerning aux-optics
- Identical filter thickness to existing standards, with utmost care for parfocality
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
- Each filter coated individually, with sealed coating edge (not cut out of a larger plate with coatings left exposed)
- Life-Coat: evermore hard coatings to enable a non-aging coating for life - even in a most adverse environment
Alpine Astronomical FCHALN-1 Specs
| Package Weight | 0.13 lb |
| Box Dimensions (LxWxH) | 3.15 x 2.95 x 0.95" |
Alpine Astronomical FCHALN-1 Reviews
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
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Description
Alpine Astronomical FCHALN-1 Overview
This 1.25" Eyepiece Filter Baader H-beta Narrowband Filter, from Alpine Astronomical, is a 6.5nm FWHM filter recommended for optical systems from f/10 to f/3.5. It features a Reflex-Blocker hard coating, which has been planeoptically polished, and has Life-Coat sealed coating edges. It is equally suitable for modern CMOS sensors as well as for older CCD camera technologies.
- Reflex-Blocker coatings offer largest ever freedom from halos, even under most adverse conditions concerning aux-optics
- Identical filter thickness to existing standards, with utmost care for parfocality
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
- Each filter coated individually, with sealed coating edge (not cut out of a larger plate with coatings left exposed)
- Life-Coat: evermore hard coatings to enable a non-aging coating for life - even in a most adverse environment
Alpine Astronomical FCHALN-1 Specs
| Package Weight | 0.13 lb |
| Box Dimensions (LxWxH) | 3.15 x 2.95 x 0.95" |
Alpine Astronomical FCHALN-1 Reviews
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
