Baader Planetarium Accessory Baader H-alpha 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized
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Baader Planetarium Accessory Baader H-alpha 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

Baader H-alpha 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

Baader PlanetariumSKU: 2961155
Baader Planetarium provides a 2 year manufacturer warranty on new items
Price:
$430 CAD
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Stock:
In Stock: 2 unitsMost orders placed by 2PM EST will be shipped out the same day (weekdays)
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Description

Highlights

  • Baader H-alpha f/2 Highspeed Filter – Precision Grade
  • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 and faster
  • Specially designed for the special filter requirements when used with extremely fast f/2 optics like the Celestron RASA astrographs
  • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
  • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
  • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

This new generation of Baader CMOS-filters features:

CMOS-optimized Baader Filters
Increased contrastEver more narrow passbandsReflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-opticsFWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratioIdentical filter thickness to existing standards, with utmost care for parfocalityBlackened 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 filterEach 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

These all new CMOS-optimized filters work magnificently with all existing digital camera technologies, be it CMOS or CCD. However – an owner of CCD-camera-technology will still find our previous, extremely affordable, narrowband filter technology to be fully apt for excellent imaging. But: "the Better always is enemy to the Good".

 

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