Alpine Astronomical FCHALHS-1 Overview
This 1.25" eyepiece Baader 6.5nm f/2.0 H-Alpha Highspeed CMOS Filter from Alpine Astronomical is recommended for extremely fast optical systems from f/3.4 to 1.8, and is designed for the special filter requirements of fast optics like Celestron RASA astrographs. The filter features a Reflex-Blocker hard coating, which has been planeoptically polished, and has Life-Coat sealed edges. It is equally suitable for use with modern CMOS sensors as for older CCD camera technologies.
- 6.5nm FWHM, recommended for extremely fast optical systems from f/3.4 to 1.8
- Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
- Reflex-Blocker hard coated and planoptically polished with sealed coating edges (Life-Coat)
- Blackened edges all around, with filter-lead-side indicator in the form of a black frontside outer rim
- Optimized for modern CMOS cameras, but excellent for CCD camera technologies
In the Box
- Alpine Astronomical Baader 6.5nm f/2.0 H-Alpha Highspeed CMOS Filter (1.25" Eyepiece Filter)
- Limited Lifetime Warranty
Alpine Astronomical FCHALHS-1 Specs
Size |
1.25" Eyepiece Filter |
Packaging Info
Package Weight |
0.17 lb |
Box Dimensions (LxWxH) |
3 x 2.95 x 0.95" |
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