Shopping cart
is empty

Home > Filters > Nebulae filters > Line Filter Sets > Baader > f/2 Highspeed > Baader Filters f/2 Highspeed H-alpha / OIII / SII 31mm

Baader Filters f/2 Highspeed H-alpha / OIII / SII 31mm

Product no.: 68205
Manufacturer: Baader

$ 550.00

incl. VAT
plus shipping costs

too expensive?

ready for shipping in 1-2 weeks

+ lead time
Product description
Customer reviews
Recommended accessories

Product description:

New f/2 Highspeed Narrowband Filters- und Filtersets (1 ¼" und 2", H-alpha / O III / S II) 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. Also 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.

Recommended accessories:

accessory details
Customers who bought this product also bought...
We ship worldwide