Product Information

  • Baader Universal Filter Changer (UFC): Visual use example (Part 6)

    Now that we have covered the main overview of the Baader UFC system in our previous blogs (parts 1-to-5), we thought it would be appropriate to give some examples of how the UFC system can be used. Firstly, this is not meant to be exhaustive as there are many combinations of telescopes and accessories. In this blog, we will consider an example of the UFC being used visually. One of the simplest ways of using...
  • 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 camera-side adaptors (Part 4)

    In this latest blog on the Baader UFC System, we will look at the UFC camera-side adaptors. At present there are nine (9) different adaptors that will allow cameras to be attached to the (camera-side) of the UFC Base unit. These are shown in the image below. The image shows the type of fitment to the camera (e.g. T-2, FLI etc), the product code and also the optical path length (thickness) of the adaptor (which is...
  • 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 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,...
  • The Encke Gap in Saturn’s ring system - imaged with only 17" aperture

    On 28 July 2018 around 22:00 UTC we obtained the best image of the planet Saturn so far. It was taken through the 17" Planewave Astrograph of the Rooisand Observatory in Namibia. The imaging camera was a ZWO ASI 290M with 2.9 µm pixel size. The primary focal length of the telescope was extended by a factor of 1.7 with a Baader Q-Turret Barlow lens element, the equivalent focal length was about 5 meters. A...
  • Baader Highspeed Filters – and why different f/ratios require special filters

    We have received the following question on our Narrowband (and f/2 Highspeed) filters: I understand that narrow-band filters suffer shifts of the passband for light rays that come in at an angle. Is that why they are good to a certain f-ratio and why you offer different filters for fast optics (how do they work? are they actually de-tuned to have the correct passpand at a different average angle?)? I would like to ask whether...
  • Simple Mounting of a CDK 12,5" on GM 2000 HPS

    How to get the CDK 12.5 on the GM 2000 without any problems? Our customer Christian Diez has developed a method that is as inexpensive as it is simple and safe. He can mount his CDK 12.5 on his own on a GM 2000 HPS mount. Instead of a pulley block on the balcony or similar effort he has simply built himself a table at the right height on which he can place the tube...
  • Optec Motorfocuser - Digital Focusing Units

    Digital, temperature compensating focusing untis by OPTEC For many years Optec has been committing itself to the automation and motorization of telescopes as well as to the production of mechanical adapters and optical accessories. Optec is a US-based company which designs and manufactures intelligent accessories for amateur astronomy since 1979. In collaboration with Starlight Instruments, digital temperature compensating focusing units and accessories / software have been developed to meet all the requirements of the latest technology...
  • Cleaning a CDK17 mirror with Optical Wonder Fluid

    In our Observatory installations, we have contact to customers for many years. This is why we get old telescopes for cleaning from time to time. This particular mirror is from a CDK 17" wich was used in a heavily poluted and salty area. The picture show´s that the mirror lost most of it´s reflectivity. The fun fact about this is that after the cleaning our customer wondered why all his images where saturated. The reason...

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