Baader H-alpha Ultra-Narrowband 3.5nm...

Baader H-alpha Ultra-Narrowband 3.5nm 31 mm filters optimized for CMOS

Baader H-alpha Ultra-Narrowband 3.5nm 31 mm filters optimized for CMOS

Name: Baader H-alpha Ultra-Narrowband 3.5nm 31 mm filters optimized for CMOS
Brand: Baader Planetarium
SKU: BAD2961326
Price: 230.58 EUR
Availability: PreOrder

Reference BAD2961326

Stock at Supplier

230.58

VAT excluded Shipping 5/7d

H-alpha ultra narrow band filters Baader Planetarium in 31 mm diameter and optimized to work with CMOS sensors

Buy it now and receive it between on Thursday, 9 January and Thursday, 16 January with Home delivery - International

Delivery Options

Carrier		Description	Estimated Delivery
	Home delivery - International	Home delivery - International	Thursday, 9 January - Thursday, 16 January

Home delivery - International

Estimated delivery:
Thursday, 9 January - Thursday, 16 January

✖

Description
Product Details

Ultra-Narrowband Baader H-alpha 3.5nm 31mm Ultra-Narrowband Filters optimized for CMOS

This new generation of Baader CMOS filters features:

CMOS-optimized Baader filters
Increased contrast
Increasingly narrower pass bands
Reflex-Blocker ™ coatings, for the greatest freedom from halos, even in the most adverse conditions related to auxiliary optics
FWHM in each filter category carefully designed to allow 1: 1: 1: 1 exposures, combined for typical CMOS quantum efficiency and s/w ratio
Filter thickness identical to existing standards, with extreme care for parafocality
Blackened edges all around, with filter lead-side indicator in the form of a black outer edge on the front side, to additionally eliminate any reflections due to light falling on the edge of a filter
Each filter individually coated, with sealed coating edge (NOT cut from a larger plate with exposed coatings)
Life-Coat ™: increasingly harder coatings to allow for a coating that will not age for life, even in the harshest environment

Summary key features:

31 mm x 2 mm Baader H-alpha ultra narrow band filters - Precision grade
3.5 nm FWHM (to harmonize exposure time with O-III / S-II), recommended for extremely fast optical systems from f/10 to f/3.5
For the highest contrast even with the strongest light pollution, minimizes star size, emphasizes the finest nebula details, indispensable under Bortle 9/8/7 / (6) skies
Reflex-Blocker ™ hard-coated and planoptically polished, with sealed coating edges (Life-Coat ™)
Blackened edges all around, with filter lead side indicator in the form of a black outer edge on the front side
Optimized for modern CMOS cameras, but excellent for CCD camera technologies

MANUFACTURER Baader Planetarium
NET WEIGHT(KG) 0.06
COLOR Black
TRANSMISSION RANGEH-alpha
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALF-BANDWIDTH) 3.5 nm
CWL (CENTER WAVELENGTH) 656.3 nm
AR-COATING Reflex-Blocker ™ hard-coated, planoptically polished
SPECIAL FEATURES CMOS optimized with Life-Coat ™
FILTER SIZE31 mm
FILTER USAGE CMOS, CCD, H-alpha
FILTER MOUNTED ON FILTER Unmounted
FILTER TYPEUltra-Narrowband
SINGLE OR JOINT? Single filter
FILTER SHAPE round

Ultra-Narrowband Baader H-alpha 3.5nm 31mm Ultra-Narrowband Filters optimized for CMOS

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