Baader S-II 6.5nm Narrowband Filter 65x65 mm - CMOS optimized
Product.Nr.:
BP#2961256
Manufacturer: Baader Planetarium
353,00 EUR
incl. 19 % VAT
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- delivery time : 3-5 Tage
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product description
- Ø 65 x 65 mm x 3 mm
- 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
- Reflex-Blocker™ hard coated and planeoptically polished
- Sealed coating edges (Life-Coat™)
- Blackened edge all around, with filter-lead-side-indicator in the form of a black frontside outer rim
- Optimized for modern CMOS cameras (no DSLRs, but "Astro"-CMOS-Cameras (ALccd/QHY etc.))
- Precision Grade
The new generation of Baader CMOS-optimized filters is characterized by the following properties
- Increased contrast
- Ever more narrow passbands
- Reflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics
- FWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio
- Identical filter thickness to existing standards, with utmost care for parfocality
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
- Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed read more)
- Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment
Technical Data
- Transmission Range : S-II
- CWL (Central Wavelength) : 671.7 nm
- HBW (Halfbandwidth) : 6.5 nm
- Thickness : 3 mm
- Planeoptically polished (1/4 Lambda)
- AR-Coating : Reflex-Blocker™ hard coated
- Life-Coat™
- Blackened edge
- Filter size : 65 x 65 mm, square
- Filter mounted : Unmounted
- Baader-filterbox, combinable
Scope of Delivery
- Baader S-II 6.5nm Narrowband Filter 65x65 mm - CMOS optimized
- Baader-filterbox, combinable
NB= Narrowband / CWL= Center-wavelength / FWHM= full width at half maximum / AR= Anti Reflection Coating.
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