Additional Information

  • The Baader Astro T-2 System™

    For over 30 years we have focused on the Astro T-2 thread system (M 42 x 0.75 mm); virtually every telescope manufacturer must offer this thread far ahead of the focal point of his instrument, such a universal T-ring (for DSLR cameras) can be connected. The only exceptions are (still) Russian equipment, there the thread diameter is the same, but the pitch is still 1mm per revolution - rather than 0.75mm! Therefore, we offer among...
  • New products November 2019

    New member of the Baader UFC Systems: Baader UFC S70 / RASA 8" Adapter (optical height: 1,4 mm) Baader UFC S70 RASA 8" telescope adapter to use cameras with 13mm back focus and T-2/M-48 or M54 female thread like the ATIK Horizon on the RASA 8". Telescope-sided with RASA 8" thread (M87) Camera-sided with S70 dovetail Can be adapted via the S70 dovetail to the  Baader UFC Base (Filter Chamber) telescope-sided S70 dovetail receptor (optical...
  • Baader Universal Filter Changer (UFC): The UFC Filter Slider (Part 3)

    In this, our 3rd part of the Baader Universal Filter Changer (UFC) system, we will look a little more closely at the UFC filter sliders. Below is an updated simplified diagram of the Baader UFC system. A general introduction you can find here, and the second part about the UFC Base here.   The image below shows the three UFC filter slider models available. More about these are individually discussed later. All the UFC filter sliders feature:...
  • Baader Universal Filter Changer (UFC): The UFC telescope-side adaptors (Part 5)

    This blog continues our series on the Baader Universal Filter Changer (UFC) system, with this one giving an overview of the telescope-side adaptors. Attaching a UFC system to a telescope may be done for example, by using a 1.25" or 2" push-fit nosepiece to go into a focuser drawtube for visual or imaging purposes, or to a focal reducer or field flattener for imaging use. The image below shows the current range of adaptors, as...
  • Baader Universal Filter Changer (UFC): The UFC Base (Part 2)

    In the first part of this series of blogs about the Baader Universal Filter Changer (UFC), we gave a general introductory overview of the UFC system. In this second part, we will look more closely at the main component of the system - the UFC Base - and outline its features. In the UFC overview diagram below, the UFC Base is the component in the middle (between the two red arrows). The UFC Base is also known as,...
  • Baader-UFC (Universal Filter Changer) – the ever-growing filter chamber (Part 1)

    The Baader Universal Filter Changer (or UFC for short) is a very versatile simple system for using, mounting and changing (or swapping) filters in and out of a light path. The UFC can be used for imaging where you may want to swap different filters (e.g. LRGB) between a camera and a telescope but do not want the bulk, or expense, of a filter wheel. The UFC can be used between a camera and a...
  • ON Semiconductor: CCD Retirement

      If you are considering a CCD camera using an ON Semi sensor, please act NOW. As many have heard by now, ON Semiconductor has decided to quit the CCD business. ON Semiconductor acquired the Kodak CCD product line and factory from Truesense about five years ago. All orders for ON Semi CCDs must placed by March, 2020. CCD Cameras from SBIG and FLI SBIG and Diffraction Limits are working to ensure a supply of...
  • Baader Observatories Map - Discover our Domes

    In 2019 we reported little about our observatory installations, instead we worked on an observatory world map. It shows not all, but many of the hundreds of observatories and domes we have installed over the last 50 years. This world map will continue to be extended with new and partly even more old observatory installations. Please note: Most of the content was filled in by our customers themselves. For this reason we ask for your...
  • RASA 8-EXTREME: Images by Michael Jäger – with CCD-camera and f/2 Highspeed-Filter

      Before the sales launch of new high-end telescopes, the first models go to experienced testers who check them for their possibilities and weaknesses. We asked Michael Jäger, one of the most successful comet hunters and photographers, to test the RASA 8" - Rowe-Ackermann Schmidt Astrograph. Such a fast telescope with short focal length and large field of view is perfect especially for sky surveillance. Together with the telescope, Michael Jäger also received a filter...
  • The First Impression: RASA 8 With ATIK Horizon Colour Camera

    RASA 8 – The family is complete – First Impressions Here is a firsthand report by Christoph Kaltseis about his work with the RASA 8 and an ATIK Horizon colour camera. On the ATT fair I was asked by the company Baader if I'd like to test the newly announced RASA 8" - Rowe-Ackermann Schmidt Astrograph (#822252 € 2.195,-) . I've been using both the RASA 11" - Rowe-Ackermann Schmidt Astrograph (#822250, € 4495,-) and...

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