Currency: EUR

Baader O-III f/2 Ultra-Highspeed-Filters CMOS-optimized

Temporarily out of stock


CMOS-optimized Baader Narrowband- and Highspeed f/2 O-III 4nm Filter

252,00 €
Varies by model








Product description

Baader 4nm O-III f/2 Ultra-Highspeed-Filter

  • Narrowband f/2 Highspeed Filters are designed especially for the delicate requirements of extremely fast astrograph optics, in particular Hyperstar and RASA

  • Conventional narrowband filters cause a heavy loss in transmission due to the strong CWL-shift. In extreme cases the CWL even does shift out of the FWHM (CWL= Center-wavelength / FWHM= full width half maximum). Therefore these filters have a CWL-preshift which matches f/2 to f/3 perfectly.

  • The FWHM is optimized. In spite of the typical line broadening with such fast optical trains they are able to deliver maximum contrast.

  • For the first time these filters allow to use fast optics really effectively with high contrast emission nebulae imaging. Using these filters between f/1,8 and f/3,5 shows a dramatic improvement compared to any regular set of narrowband-filters.

Product details

  • Optimized for CMOS cells (color and mono)
  • High quality parfocal filter
  • Shaded edges
  • The front is marked with a black outline on the edge
  • The edges are sealed to prevent moisture from entering
  • Life-Coat coating will last for a lifetime!

Shipping costs

PostNord Parcel locker
4,90 €
PostNord Home deliver
19,00 €
PickUp Parcel
5,90 €
Delivery time to EU 2-5 days. Pick up delivery
UPS Standard
14,90 €
Delivery to Europe in 2 to 5 days.
DHL Economy Select
14,90 €

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