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Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 36mm – CMOS-optimized (H-alpha / O-III / S-II)
Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 36mm – CMOS-optimized (H-alpha / O-III / S-II)
Highlights
- 36 mm x 2 mm Baader CMOS H-alpha / O-III / S-II f/2 Ultra-High-speed Filter Set – Premium Grade
- 3.5 / 4 nm FWHM (to harmonize the exposure time from H-alpha with O-III / S-II), recommended for extremely fast optical systems from < f/2.3
- Specially designed for the special filter requirements when used with extremely fast f/2 optics like the Celestron RASA astrographs
- For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
- Reflex-Blocker™ hard coated and Plane-optically polished – with sealed coating edges (Life-Coat™)
- Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
- Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
Description
This new generation of Baader CMOS-filters features:
Specifications
| Manufacturer | Baader Planetarium |
|---|---|
| SKU (#) | 2961682 |
| EAN Code | 4047825104120 |
| Net weight (kg) | 0.19 |
| Suitable for f/ratio | < f/2.3 |
| Transmission Range | H-alpha / O-III / S-II |
| Filter Thickness (without cell) | 2 mm |
| HBW (Half bandwidth) | 3.5 nm (H-alpha) / 4 nm (O-III / S-II) |
| CWL (Central Wavelength) | 656,3 nm / 500,7 nm / 671,7 nm |
| AR-Coating | Reflex-Blocker™ hard coated, Plane-optically polished |
| Special Features | CMOS-optimized with Life-Coat™ |
| Filter size | 36 mm |
| Filter Usage | CMOS, CCD, H-alpha, O-III, S-II |
| Filter mounted | Unmounted |
| Type of Filter | f/2 Ultra-High-speed |
| Single or Set? | Filter-Set |
| Filter shape | round |
$728.45
Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 36mm – CMOS-optimized (H-alpha / O-III / S-II)—
$728.45
Description
Highlights
- 36 mm x 2 mm Baader CMOS H-alpha / O-III / S-II f/2 Ultra-High-speed Filter Set – Premium Grade
- 3.5 / 4 nm FWHM (to harmonize the exposure time from H-alpha with O-III / S-II), recommended for extremely fast optical systems from < f/2.3
- Specially designed for the special filter requirements when used with extremely fast f/2 optics like the Celestron RASA astrographs
- For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
- Reflex-Blocker™ hard coated and Plane-optically polished – with sealed coating edges (Life-Coat™)
- Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
- Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
Description
This new generation of Baader CMOS-filters features:
Specifications
| Manufacturer | Baader Planetarium |
|---|---|
| SKU (#) | 2961682 |
| EAN Code | 4047825104120 |
| Net weight (kg) | 0.19 |
| Suitable for f/ratio | < f/2.3 |
| Transmission Range | H-alpha / O-III / S-II |
| Filter Thickness (without cell) | 2 mm |
| HBW (Half bandwidth) | 3.5 nm (H-alpha) / 4 nm (O-III / S-II) |
| CWL (Central Wavelength) | 656,3 nm / 500,7 nm / 671,7 nm |
| AR-Coating | Reflex-Blocker™ hard coated, Plane-optically polished |
| Special Features | CMOS-optimized with Life-Coat™ |
| Filter size | 36 mm |
| Filter Usage | CMOS, CCD, H-alpha, O-III, S-II |
| Filter mounted | Unmounted |
| Type of Filter | f/2 Ultra-High-speed |
| Single or Set? | Filter-Set |
| Filter shape | round |
