Baader 1¼" Methane-Filter (CWL 889nm, 8nm)

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£195.00
SKU 2458295

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  • For imaging in pure methane band
  • 8nm bandpass CWL 889nm
  • Uses Schott RG 830 substrate with super stack dielectric coating
  • non-ageing sealed coating edges
Description

A 1.25" size version only, for imaging in pure methane band, the filter has a 8nm bandpass CWL 889nm. The filter uses Schott RG 830 substrate with super stack dielectric coating. Can be used to image Venus, Jupiter and Saturn but can also be used to image deep sky objects too, such as the North American Nebula (NGC7000).

Specifications
MANUFACTURER Baader Planetarium
SKU (#) 2458295
EAN CODE 4047825023285
WEIGHT (KG) 0.06
TRANSMISSION RANGE Methane
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALFBANDWIDTH) 8nm
CWL (CENTRAL WAVELENGTH) 889 nm
AR-COATING dielectrically coated, planeoptically polished
FILTER SIZE 1 25 inch
FILTER USAGE CCD, Planetary, Specialty
FILTER MOUNTED Mounted (LPFC 6mm)
TYPE OF FILTER Narrowband
SINGLE OR SET? Single Filter
FILTER SHAPE round