Alpine Astronomical FCSETN-SQ65 Overview
The 65 x 65mm Baader 6.5nm Narrowband Filter Set from Alpine Astronomical features three precision-grade filters designed for f/10 to f/3.5 optical systems. The set includes H-alpha, O-III, and S-II filters optimized for CMOS sensor cameras and also suitable for CCD sensors.
H-alpha, O-III, and S-II narrowband filter set
6.5 nm FWHM recommended for optical systems from f/10 to f/3.5
Designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio
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 CMOS cameras and suitable for CCD cameras
Increased contrast
Narrow passbands
In the Box
- Alpine Astronomical Baader 6.5nm Narrowband Filter Set (65 x 65mm)
- H-alpha Filter
- O-III Filter
- S-II Filter
- 2-Year Manufacturer Warranty
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