1¼" Baader H-Beta CCD-filter 8,5nm with 1¼" (28,5mm) filter thread
For focal ratios between f10 and f2.8
H-Beta-CCD-narrowband-filters can also be used for visual observations! (A high-quality alternative to the old Lumicon-H-Beta-Filters)
Antireflex-coating, fineoptically polished
Specifications
SKU (#) : |
2458425 |
WEIGHT (KG): |
0.059 |
TRANSMISSION RANGE: |
H-beta |
FILTER THICKNESS (WITHOUT CELL): |
2 mm |
HBW (HALFBANDWIDTH): |
8.5nm |
CWL (CENTRAL WAVELENGTH): |
486 nm |
AR-COATING: |
dielectrically coated, planeoptically polished |
FILTER SIZE: |
1.25 inch |
FILTER USAGE: |
CCD, H-Beta, IR-Cut |
FILTER MOUNTED: |
Mounted (LPFC 6mm) |
TYPE OF FILTER: |
Narrowband |
SINGLE OR SET?: |
Single Filter |
FILTER SHAPE: |
round |