Product Info
Shipping
Baader f/2 High Speed Filter - H-Alpha 2" LPFC
Therefore these filters have a CWL-preshift which matches f/2 to f/3 perfectly. Also the FWHM is optimized. In spite of the typical line broadening with such fast optical trains they are able to deliver maximum contrast. For the first time these filters allow the effective use of extremely fast optics for high contrast imaging of emission nebulae. Using these filters between f/1,8 and f/3,5 shows a dramatic improvement compared to any regular set of narrowband-filters.
MANUFACTURER | Baader Planetarium |
SKU (#) | 2459397 |
WEIGHT (KG) | 0.065 |
COLOUR | H-alpha |
TRANSMISSION RANGE | H-alpha |
FILTER THICKNESS (WITHOUT CELL) | 2 mm |
CWL (CENTRAL WAVELENGTH) | 656,3 nm |
AR-COATING | dielectrically coated, plane optically polished |
SPECIAL FEATURES | Maximum contrast for fast Astrographs |
FILTER SIZE | 2" |
VISUAL OR IMAGING? | imaging |
FILTER USAGE | CCD, f/2 High speed, H-alpha |
FILTER MOUNTED | Mounted (LPFC 6mm) |
TYPE OF FILTER | Narrowband |
SINGLE OR SET? | Single Filter |
FILTER SHAPE | round |