Baader Methane Bandpass Filter 1.25″

Designed for imaging in the pure methane band, this 1.25″ filter is ideal for planetary and some deep-sky astrophotography. With a central wavelength (CWL) of 889nm and an 8nm bandpass, the Baader Methane Bandpass Filter provides exceptional performance using its Schott RG 830 substrate and advanced super stack dielectric coating.

Key Features:

• Optimal for Methane Band Imaging: 8nm bandpass CWL 889nm for high-contrast imaging.
• High-Quality Substrate: Schott RG 830 substrate ensures precision performance.
• Advanced Coatings: Super stack dielectric coatings with sealed edges prevent ageing and maintain durability.
• Versatile Applications: Suitable for imaging Venus, Jupiter, Saturn, and select deep-sky objects like the North American Nebula (NGC7000).

Specifications:

• Manufacturer: Baader Planetarium
• SKU: 2458295
• EAN Code: 4047825023285
• Weight: 0.06kg
• Transmission Range: Methane
• Filter Thickness: 2mm (without cell)
• HBW: 8nm
• CWL: 889nm
• AR Coating: Dielectrically coated, planeoptically polished
• Filter Size: 1.25″
• Filter Usage: CCD, Planetary, Specialty
• Filter Mount: Mounted (LPFC 6mm)
• Type of Filter: Narrowband
• Filter Shape: Round