Skip to content
Until May 2nd, 2025, orders under US$800 will not incur any duties or taxes upon delivery. Please note that orders under US$800 crossing the Canada-USA border after this date will be subject to duties. They will be billed by the carrier, and you will be responsible to pay them. Prioritize ordering items that are in stock!
Until May 2nd, 2025, orders under US$800 will not incur any duties or taxes upon delivery. Please note that orders under US$800 crossing the Canada-USA border after this date will be subject to duties. They will be billed by the carrier, and you will be responsible to pay them. Prioritize ordering items that are in stock!

Baader 6.5nm H-alpha Filter - CMOS-Optimized

by Baader Planetarium
SKU BAA-2961100
$0
$167.00 USD - $429.00 USD
$167.00
$167.00 USD - $429.00 USD
$167.00 USD
Availability:
Backordered
Contact us to know when we will receive our next ones!
Availability:
Backordered
Contact us to know when we will receive our next ones!
Availability:
Backordered
Contact us to know when we will receive our next ones!
Availability:
Backordered
Contact us to know when we will receive our next ones!
Availability:
Backordered
Contact us to know when we will receive our next ones!
Availability:
Backordered
Contact us to know when we will receive our next ones!
Availability:
Backordered
Contact us to know when we will receive our next ones!

Free Shipping on most orders above $350*

More information

  • Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade
  • 6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5
  • 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 frontside outer rim
  • Optimized for modern CMOS cameras, but excellent for CCD camera technologies

The new generation of Baader CMOS-optimized filters features:

  • CMOS-Optimized Baader Filter
  • 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

You may also like

  • Save 6% Save %
    $186.85 USD
    $186.85 USD - $186.85 USD
    $186.85 USD
    $174.86 USD
    $174.86 USD - $174.86 USD
    $174.86 USD

    Baader 6.5nm 36mm H-alpha Filter - CMOS-Optimized (OPEN BOX)

    BAA-2961100-36-OPENBOX
    Only 1 left!

    In perfect condition, open box Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm FWHM, recommended for optical systems...

    View full details
    $186.85 USD
    $186.85 USD - $186.85 USD
    $186.85 USD
    $174.86 USD
    $174.86 USD - $174.86 USD
    $174.86 USD
    Save 6% Save %
  • $457.00 USD - $1,149.00 USD
    $457.00 USD - $1,149.00 USD
    $457.00 USD - $1,149.00 USD
    $457.00 USD

    Baader 6.5nm Narrowband Filter Set - CMOS-Optimized H-alpha/O-III/S-II

    Options available

    Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5 Reflex-...

    View full details
    $457.00 USD - $1,149.00 USD
    $457.00 USD - $1,149.00 USD
    $457.00 USD - $1,149.00 USD
    $457.00 USD
  • $157.00 USD - $417.00 USD
    $157.00 USD - $417.00 USD
    $157.00 USD - $417.00 USD
    $157.00 USD

    Baader 6.5nm SII Filter - CMOS-Optimized

    Options available

    6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5 Reflex-Blocker ™ hard coated and planoptically polished - with sealed coating...

    View full details
    $157.00 USD - $417.00 USD
    $157.00 USD - $417.00 USD
    $157.00 USD - $417.00 USD
    $157.00 USD
  • $159.00 USD - $419.00 USD
    $159.00 USD - $419.00 USD
    $159.00 USD - $419.00 USD
    $159.00 USD

    Baader 6.5nm OIII Filter - CMOS-Optimized

    Options available

    6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5 Reflex-Blocker ™ hard coated and planoptically polished - with sealed coating...

    View full details
    $159.00 USD - $419.00 USD
    $159.00 USD - $419.00 USD
    $159.00 USD - $419.00 USD
    $159.00 USD
  • $285.00 USD - $617.00 USD
    $285.00 USD - $617.00 USD
    $285.00 USD - $617.00 USD
    $285.00 USD

    Baader 4nm Ultra-Narrowband OIII Filter - CMOS-Optimized

    Options available

    Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmonize the exposure time of H-...

    View full details
    $285.00 USD - $617.00 USD
    $285.00 USD - $617.00 USD
    $285.00 USD - $617.00 USD
    $285.00 USD