The main reason why amateur astrophotograpers use these narrowbrand (narrow band of frequencies from a wider bandwidth signal) filters is to isolate and separate their deep sky target like a nebula (interstellar cloud of dust and gases) from a washed out polluted city sky. These filters helps you to collect those wavelengths associated with your deep sky target and ignore almost everything else which means that you can shoot from almost anywhere even during full moon.
The high optical quality of the Baader narrowband filters guarantees no loss in sharpness or contrast. Baader’s Anti-reflective coating technology, ¼ Wave Fineoptically polish, Ionbeam hardened coatings and fully sealed coating edges for long life, and low-profile cells. The Baader narrowband filters have a CWL preshift and the FWHM is also optimized. The special threading has been designed to fit a wide variety of eyepieces and accessories. The front 'crown' of the filter incorporates milled notches which make handling and threading the filter a more secure operation in the dark.
Features: Baader 1.25 Inch H-Alpha 35nm CCD Filter Optically Polished
- Baader H-Alpha 35nm CCD Filter 1.25 inch optically polished
- Non-aging efficient hard coating
- Enables high-contrast deep sky images
- Truly designed to be stacked and combined
- Allows CCD-contrast images of H II regions
- Take images even from light-polluted areas
- Shape: Round
- Filter Size: 1.25"
- HBW (Half Bandwidth): 35nm
- Transmission Range: H-Alpha
- Wave p-v over the entire surface: 1/4
- Filter Usage: H-alpha, Interline-CCD, IR-Cut
- AR-Coating: Dielectrically Coated, Planeoptically Polished
- Weight: 0.059 kg
Baader 1.25 Inch H-Alpha 35nm CCD Filter Optically Polished
Manufacturer's Warranty
Instruction / User Manual
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