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Baader H-alpha 35nm CCD Filter

$109.00
SKU FHAL-1 (Baader #2458381)
Filter size

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Description
  • Premium grade H-alpha interline chip CCD-filter for fast optical systems f/10 to f/2.8
  • IR-blocked
  • NO halos, NO reflections, NO ghosting
  • Non-aging sealed coating edges

Baader's new H-Alpha passfilter enables high-contrast deep sky images of H-II regions (such as the N. American Nebula). Its medium 35nm FWHM bandwidth is ideal for interline CCD cameras ( like SBIG ST-2000/STL11000). The lower sensitivity of interline transfer CCDs benefits from the more efficient 35nm FWHM. The sharp bandpass and > 90% high efficiency coatings make the Baader H-Alpha filter superior to the common colored-glass based filters, all at a reasonable price.

The Baader H-Alpha filter shares the same outstanding features as all the other Baader imaging filters. Unmatched optical quality, and high efficiency hardened multicoatings result in the sharpest and highest contrast images possible.

H-Alpha 35nm Transmission Curve

H-Alpha 35nm Transmission Curve

 

Specifications

1.25"

MANUFACTURER Baader Planetarium
SKU (#) 2458381
EAN CODE 4047825009456
WEIGHT (KG) 0.059
COLOUR Black
TRANSMISSION RANGE H-alpha
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALFBANDWIDTH) 35nm
CWL (CENTRAL WAVELENGTH) 656,3 nm
AR-COATING dielectrically coated, planeoptically polished
FILTER SIZE 1 25 inch
FILTER USAGE H-alpha, Interline-CCD, IR-Cut
FILTER MOUNTED Mounted (LPFC 6mm)
TYPE OF FILTER Narrowband
SINGLE OR SET? Single Filter
FILTER SHAPE round

2"

MANUFACTURER Baader Planetarium
SKU (#) 2458380
EAN CODE 4047825009463
WEIGHT (KG) 0.066
COLOUR Black
TRANSMISSION RANGE H-alpha
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALFBANDWIDTH) 35nm
CWL (CENTRAL WAVELENGTH) 656,3 nm
AR-COATING dielectrically coated, planeoptically polished
FILTER SIZE 2 inch
FILTER USAGE H-alpha, Interline-CCD, IR-Cut
FILTER MOUNTED Mounted (LPFC 6mm)
TYPE OF FILTER Narrowband
SINGLE OR SET? Single Filter
FILTER SHAPE round

50.8mm

MANUFACTURER Baader Planetarium
SKU (#) 2458379
EAN CODE 4047825009470
WEIGHT (KG) 0.07
COLOUR Black
TRANSMISSION RANGE H-alpha
FILTER THICKNESS (WITHOUT CELL) 3 mm
HBW (HALFBANDWIDTH) 35nm
CWL (CENTRAL WAVELENGTH) 656,3 nm
AR-COATING dielectrically coated, planeoptically polished
FILTER SIZE 50.8 mm
FILTER USAGE H-alpha, Interline-CCD, IR-Cut
FILTER MOUNTED Unmounted
TYPE OF FILTER Narrowband
SINGLE OR SET? Single Filter
FILTER SHAPE round

50x50mm

MANUFACTURER Baader Planetarium
SKU (#) 2458379R
EAN CODE 4047825022806
WEIGHT (KG) 0.074
TRANSMISSION RANGE H-alpha
FILTER THICKNESS (WITHOUT CELL) 3 mm
HBW (HALFBANDWIDTH) 35nm
CWL (CENTRAL WAVELENGTH) 656,3 nm
AR-COATING dielectrically coated, planeoptically polished
FILTER SIZE 50 x 50 mm
FILTER USAGE H-alpha, Interline-CCD, IR-Cut
FILTER MOUNTED Unmounted
TYPE OF FILTER Narrowband
SINGLE OR SET? Single Filter
FILTER SHAPE square
Downloads

FAQ - Problems with filters can have the strangest causes

Halos - No Problem!