Baader Planetarium H-Alpha 7nm 2inch CCD Narrowband-Filter is used to deliver the highest deep sky images in H-Alpha, H- Beta, Oxygen III and Sulfur- III with the shortest exposures possible. These filters are designed for CCD astrophotography and an essential accessory for lunar and planetary observations. The Baader ultra-narrow bandwidths have extremely high transmission and will block all unwanted light pollution and longer wavelengths. Baader filters are truly designed to be stacked and combined due to the high optical quality and highly efficient anti-reflection multi-coatings. Premium quality coating is applied that offers optimum light transmission.
The high optical quality of the Baader narrowband filters guarantees no loss in sharpness or contrast. Each substrate is fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface. This special custom polishing operation sets Baader filters apart from the standard commercially precision polished filter substrates used by most other filter manufacturers. The anti- reflection coatings are designed to avoid halos as well as balanced to prevent physical deformation of optically flat substrates.
Features: Baader Planetarium H-Alpha 7nm 2inch CCD Narrowband-Filter
- Baader Planetarium H-Alpha 7nm 2inch CCD Narrowband-Filter
- Extremely high transmissions
- Blocking of longer wavelengths
- No loss in sharpness or contrast
- Designed to be stacke and combine
- Complete rejecting light pollution
- Never degrade from use or normal cleaning
- Deliver the absolute highest contrast deep sky images
Specification: Baader Planetarium H-Alpha 7nm 2inch CCD Narrowband-Filter
- Manufacturer: Baader
- Shape: Round
- Filter aperture: 45mm
- coating: Multi-layer dielectric coated
- wavefront over the entire surface: 1/4
- Item model number: 2458384
- Planoptically polished
- Warranty: 2 years
Kit contents
Baader Planetarium H-Alpha 7nm 2inch CCD Narrowband-Filter
Manufacturer's Warranty
Instruction / User Manual
