Baader 6.5nm f/2 Highspeed Filter-Set – CMOS-optimized (H-alpha / O-III / S-II)

More Views

Images uploaded by Customers

Add Your Review with Images
Baader 6.5nm f/2 Highspeed Filter-Set – CMOS-optimized (H-alpha / O-III / S-II)

Please choose product variant below to see price and SKU number

€ 419.00 Price excl. German VAT tax (19%): € 352.10

Please choose product variant below to see stock status  

0

  • Baader H-alpha / O-III / S-II f/2 Highspeed Filter Set – 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

* Required Fields

€ 419.00 Price excl. German VAT tax (19%): € 352.10

Product Questions

Sort by ASC
What's the actual size of your 2" filters in "mm" with and without frame/ring? What step down adapter is suggested from a 52 mm to "-- mm"?
171
Question by: Waqas Ahmad on Oct 10, 2016 7:54:00 PM | 1 Answer(s)
What are the threads and pitch of your 1.25" and 2" filters?
38
Question by: Anders G. on Sep 20, 2017 12:55:00 PM | 1 Answer(s)
Since these filters are optimized for fast systems, will they work as well as the "normal" filters on say an f/6 system that I have now? It would be nice to use these fast filters on the current system as well as a faster system in the future.
4
Question by: Randy Cross on Jan 20, 2022 11:09:00 PM | 1 Answer(s)
Description

Details



This new generation of Baader CMOS-filters features:

CMOS-optimized Baader Filters
  • 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

  • Further information, test reviews, image results...

    Don´t be misled.

    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".

    ... can be found on our detailed Blogpost:

    Baader Blogpost:
    New CMOS-optimized Baader Filters



    Related Articles
    Specifications

    Additional Information

    Technical Data not yet specifiedPlease choose product variant from dropdown above to see technical data of your chosen product
    FAQ
    Downloads
    Reviews

    You may also be interested in the following product(s)

    Overall Average Rating:
    1 review
    5 star
    0
    4 star
    1
    3 star
    0
    2 star
    0
    1 star
    0
    • Date - Newest First
    • Date - Newest First
    • Date - Latest First
    • Highest Rated
    • Lowest Rated
    • Most Helpful

    1 Item(s)

    Remco 355/12/2021 22/12/202114:27
    • Rating:
    SHO recording under full moon
    This image was recorded over two nights under the full moon and the nightafter full moon, with my new SHO 6,5nm filters. I am very pleased at the signal it gave.

    recorded with a a Skywatcher 150/750 newton and QHY 294M camera
    Ha: 43 x 6 minutes
    Sii: 37 x 6 minutes
    Oiii: 27 x 6 minutes

    There was a slight halo around the brightest stars in O-iii. However that was manageble in postprocessing. A cut out of the raw O-iii image with the moste severe halo in the images is attached below (star in the center bottom of the overall image).
    • Very good signal, even under a full moon
    • There was a slight halo around the brightest stars in O-iii. However that was manageble in postprocessing.
    0
    0
    Reply
    Show more comments (-5) Hide comments

    1 Item(s)

    What kind of abuse are you reporting?
      Please, wait...