Produktinformationen

  • Hints + tricks for high-resolution lunar and planetary photography with Baader Planetarium accessories

    Hints + tricks for high-resolution lunar and planetary photography with "lucky imaging technique" and a video camera - a short workflow for Schmidt Cassegrain telescopes and Baader Planetarium accessories Pictures often say more than a thousand words ... ... again and again I am asked how I make my highresolution lunar and planetary shots. Therefore, here is a brief description of the equipment and following a few hints + tricks to the "workflow" for shooting and image processing. Read here the Hints + Tricks for high-resolution lunar and planetary photography with "lucky imaging technique" and video camera.
  • Detailed Customer Review on CDK 17" PlaneWave Astrograph

    Dear Mr. Baader, I am happy to comply with your request and share with you my criteria that led to the purchase of the 17 inch telescope from  Planewave, and following my experience with this telescope. Since this was a rather complex topic, please forgive the long text and its extent , which certainly clearly exceeds a "normal" customer judgment. Download: detailed review on CDK 17" PlaneWave Astrograph (pdf-file) Decision criterions for the choice of the Planewave astrograph were primarily: "First Light" at full focal length of the PlaneWave. Exposure 40x30 seconds (without any guiding) was added, taken with a modified Canon EOS 40 DA. robust mechanical construction of the whole telescope, fixed installation and collimation of primary mirror and field corrector at factory, stable secondary mirrorcell, easy adjustment of the secondary mirror, easy control of distance between the main and secondary mirror withRonchi test, good focus stability with slight...
  • Free Download: 3D-printable UFC-Case for filter sliders

    You are the owner of one or more UFC filter sliders and are looking for a way to safely store the filter sliders with mounted filter? Then we have the solution for you: our 3D-printable UFC-Case for filter sliders. This box with hinged lid holds all UFC filter sliders. We offer you the STL files (consisting of two parts) as free download, you only need to login with your customer account or register on our website. Below is the download link (which will only work when you're logged in). Please also note the information below about the Creative Commons License. [br] Other Case for UFC filter slider as 3D-printable .STL file * (Size: 644.2 KB) Downloads: 14 * You have to Login or Register to download this file The download file is licensed under the Creative Commons License CC BY-NC-SA 4.0. You may pass on the file under Attribution ©...
  • 17.5mm Morpheus® Review

    William "Bill" Paolini has been actively involved in optics and amateur astronomy for more than 50 years, and is author of the popular book: Choosing and Using Astronomical Eyepieces We appreciate the positive feedback we have received so far. With 3 years of additional development time - the Morpheus 17.5mm was also the most elaborate eyepiece project we had ever started. A detailed Morpheus 17.5mm test report has now been published by William Paolini in the most popular astro forums. We are very happy about his extremely positive conclusion and would like to quote the following line: The latest Baader addition to the Morpheus eyepiece line up comes across to my eye like they saved the best for last. In general the comments on the Morpheus 17.5 and the improvements to the complete eyepiece series (new eyecups with integrated metal threaded ring, index clip, etc.) in the popular forums are...
  • Astro-Physics – High-end German Equatorial Mounts

    HIGH-QUALITY PROFESSIONAL ASTRONOMICAL MOUNTS Astro-Physics 130mm/ f/6.3 StarFire GTX Refractor "Gran Turismo" Keeping to the same quality standards that have made the fully-apochromatic refractors legendary, Roland Christen's company has been building German Equatorial GoTo mounts for more than three decades. Their proven stability, accuracy and durability is the reward for anyone who can endure the traditionally long delivery times. "El Capitano" at Dome C of the Concordia Station in Antarctica" Two "el Capitan" mounts are working in the Antarctic for several years now, even at temperatures of -75°C. They are perhaps the most spectacular example of the durability of the sturdy Astro-Physics mounts and are representative for many more exemplars that often run for decades at our customers without failures. Astro-Physics GTO 1600 With a very accurate manufactured worm gear the Astro-Physics mounts are equally well-suited for smooth, effortless tracking of celestial objects as well as for all visual and...
  • An experience report on the new Baader Telecentric System TZ-3 and the Research Grade (RG) Telecom­pressor (TC) 0.4

    An experience and observation report on the new Baader Telecentric System TZ-3 and the Research Grade (RG) Telecom­pressor (TC) 0.4 for solar observation in the H-alpha light with SolarSpectrum filters download the complete review (pdf) Introduction Successful H-alpha-observations of the sun with narrow-band line filters from the manufacturers   “SolarSpectrum” and / or "DayStar" require an almost parallel beam of light with a focal ratio of approx. f/30 directly in front of the filter, otherwise the filter will not work properly. This is not so easy with today's fast optical systems, which work around f/7. Such an opening ratio can be achieved either by masking (reducing) the front lens opening or by parallizing the optical beam with a "telecentric system" (TZ). * TZ: See also the supplement at the end of the report. My "solar telescope" is an AstroPhysics refractor with an aperture of 155mm and a focal length of 1.085mm,...
  • Avalon Instruments - Fast Reverse Mounts

    Avalon Mounts: Portable mounts for astronomical imaging Goal: Total reliability The Avalon LineAR and M-Uno Fast Reverse Mount are equatorial mounts designed for astronomical imaging. With a load capacity of 20-25 kg (44 – 55 lb) the mounts are unrivaled in their construction, qualitiy and price, and are sutiable for both visual and photographic observations. The M-Zero offers the same technology. With a load capacity of 8-13 kg, the low weight and high quality of this mount make it the ideal companion for travelling observers and astro-photographers. The M-Zeta, with a load capacity of 20 kg - 20+10kg in Dual Dec. Mode, an altazimuth Single-Arm mount, continues Avalon's tradition of cutting edge design and top quality performance. The main goal of Avalon was to bring the perfect mount for astro-imaging onto the market, with no plays and vibrations, assuring the highest precision and total reliability on the field. Every astroimager dreams of a...
  • Apochromatic Triplet Objective: Why oil-spaced lenses?

    Why an oil-spaced triplet-lens? The first successful experiments with oil-spaced triplet-lenses were probably done by Wolfgang Busch from Ahrensburg, who had several discussions about this with Carl Zeiss Jena, back in the days of the German Democratic Republic. Even then, this technique was far superior to the standard technics like air-spaced or cemented lenses. But it was hard to keep the joining medium inside of the lens, because of insufficient synthetic oils and many other reasons. Because of this, the lens could freeze or dry out. It took Zeiss more than ten years of research to solve these difficulties and present the first APQ-lens. Besides Zeiss, only Astro-Physics and TEC were able to produce long-lasting oil-spaced lenses. It takes some tricks and knowledge to keep the oil (if the fluid can still be called oil) inside of the lens – at least over a long period of time with always-changing...
  • The CDK Optical Design

    CDK 20" Astrograph The CDK [Corrected Dall-Kirkham] telescope is based on a new optical design developed by Dave Rowe. The goal of the design is to make an affordable astrographic telescope with a large enough imaging plane to take advantage of the large format CCD cameras of today. Most telescope images degrade as you move off-axis from either coma, off-axis astigmatism, or field curvature. The CDK design suffers from none of these problems. The end result is a telescope which is free from off-axis coma, off-axis astigmatism, and curvature of field, yielding a perfectly flat field all the way out to the edge of a 52mm image circle. This means pinpoint stars from the center out to the corner of the field of view. The design is a simple and elegant solution to the problems posed above. The CDK consists of three components: an ellipsoidal primary mirror, a spherical secondary...
  • Why choose UFC Quickchange-Frontfilters with DSLR-Cameras?

    Info about using quickchange-frontfilters with the UFC in combination with DSLR-cameras There are no monochrome DSLR-cameras on the market, so a filter holder (e.g. the Baader-UFC) may seem quite useless for DSLR imaging, but if you take a closer look, there are indeed some interesting use-cases. Many owners of DSLR-cameras remove the complete UV/IR-blocking filter and use this simple way to improve the sensitivity especially for H-alpha – but because of the costs, they decide not to add a new blocking filter with increased H-alpha-transmission. But as a result, you have to find another way to block the IR- and UV-parts of the spectrum so that they will not decrease the image quality. You can use the UFC to mount such a UV/IR-cut filter in front of the camera - and to quickly replace it with another filter, without touching the camera. Narrowband filters are not perfectly suited for a...

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