Baader Planetarium Blog Posts

  • New CMOS-optimized Baader Filters

    See results Here you can jump directly to customer images taken with CMOS-optimized Baader Filters Update October 1st: New LRGB-Filters have been added to the line of CMOS-optimized Baader Filters. The post below has been modified to reflect these changes. "Finding the way" has a long tradition at Baader Planetarium. The slogan got created by our companies founder Claus Baader – in 1966, when "the Baader Planetarium-Orrery" was announced to the world. And within those many years we always tried to find ways for our technical solutions – and the domes – to stand the test of time. The Baader Planetarium Orrery btw. might have the longest product existence in modern industry – we still produce it here in house – unchanged since 1966 (if...
  • A compact and lightweight scope for guiding: QHYCCD's miniGuideScope

    A lot of people who undertake astrophotography, whether they are beginners or seasoned amateurs, opt for high quality small aperture, short-medium focal length telescopes such as BAADER APO 95/580 CaF2 Travel Companion (#2300095, € 3850,-) or the 8" Celestron Rowe-Ackermann Schmidt Astrograph. These telescopes will give a relatively wide field of view allowing images to be taken of spectacular large celestial objects such as the North American Nebula, Andromeda galaxy, Orion nebula, Pleiades open star cluster and many many more. Guiding is essential for taking long exposure images of such celestial objects. Long gone are the days when your guidescope was a telescope that would be similar in focal length as your imaging scope and you would guide by looking at a star through a...
  • Product announcement : SWIR QHY990 and QHY991 cameras

    Two new cooled CMOS cameras QHY 990 and QHY 991 for the near infrared spectrum. In September 2021, QHY began shipping 2 new camera models, the QHY990 and the QHY991. Both are cooled cameras with CMOS sensors covering the near infrared wavelength range. Both models use Sony InGaAs sensors with square pixels measuring 5µm x 5µm. The IMX990 is a 1.3-megapixel sensor and the IMX991 has a 0.4-megapixel array. The spectral response starts at 400. and ends at 1700 nanometres. The maximum quantum efficiency is 77 % at a wavelength of 1200 nanometres. More details about SWIR QHY990 and QHY991 can be found on our product page
  • Baader L-RGB Filters – CMOS-optimized

    A brief introduction to the function of CMOS/CCD (L)RGB Filters Unlike terrestrial objects, astronomical objects shine in discrete emission lines. For this reason, any RGB-filter design with gently raising and falling slopes on either side of the transmitted spectral region generally is undesirable. The stars themselves obey to the laws of physics and shine by their stellar temperature colour - with a smooth, wide spectrum. This richness of colours can be covered nicely when adding an L-filter into the imaging process. However – shades and colour hues such as in earthly objects are not available when imaging the sharply defined emission spectra of deep sky objects. For this reason  the slopes on RGB filter curves ought to be produced extremely steep for each colour channel -...
  • Important System Driver Update Information - For All QHYCCD Cameras

    Breaking news from QHYCCD: QHY - Important firmware driver upgrade 9/21 Based on an update notification of the USB chip, we added a new API in the firmware of all QHYCCD cameras between 2021.7.10 and 2021.9.4. According to the description, we were expecting that this modification would increase the stability of the USB link. Unfortunately, however, we have received feedback from our users that it can cause a random crash in single frame capture mode on some computers. These random events can occur after some minutes or some hours or even longer time frames. To test these reports, we changed back to the system driver release before 2021.7 and have confirmed that without this new API the random crashes disappear. In order to avoid this...
  • NEW: Baader SunDancer II H-Alpha Filter – Test Review

    I was lucky enough to be able to "play" with one of the first SunDancer II H-alpha filters and see what it is capable of. Even though I am not one of the most experienced H-alpha observers, I have been able to observe the sun with the two H-alpha telescopes of the Observatory in Heilbronn/Neckar again and again for more than 20 years. These are a 20/20 H-alpha filter by Wolfgang Lille with 0.8Å on the 150/2250 refractor (which complements a classical prominence filter), and a Lunt LS-60 telescope. I freely admit that I find the concept of the Lunt convincing, especially for public observatories: a complete telescope with which nothing can go wrong. It's foolproof, which is especially important in an club where many...
  • New Products August 2021

    Important addition to the Baader UFC and M68 system Baader UFC-Tilter UFC tilter for an optimally flattened field of view Compatible with the entire Baader UFC system 0-1° tilt – allows a shift of up to 1° to compensate for misalignments in the image field 9.75 - 10.50 mm optical length On our overview page for the Baader UFC system, we have published some blog posts that explain the system clearly for a better understanding of the system. Baader M68-Tilter M68 titlter for an optimally flattened field of view Compatible with the entire Baader M68 system 0-1° tilt – allows a shift of up to 1° to compensate for misalignments in the image field 9.50 - 10.25 mm optical length   Accessories for the M68...
  • The Baader UFC Tilter Adapter (Part 10)

    Baader UFC Tilter The effects of image tilt can ruin an otherwise great astrophoto. Image tilt (or image plane tilt) happens in imaging when an area towards the edge of the field exhibits out-of-focus or imperfect star images and is caused by the image sensor not being pefectly perpendicular to the light path. Focuser skewness (or "droop"), flattener/corrector lenses, extension adaptors, camera angle adjusters as well as inherent camera sensor tilt in the camera body itself are all causes of image field tilt. Being able to correct for this image plane tilt is important and essential to get perfect focused sharp star images across the field of view. For those that do astroimaging with our Universal Filter Changer (UFC) we are pleased to annnounce a...
  • QHY Adaptersets

    QHY offers a very comprehensive and flexible adapter system that allows our cameras to achieve focus with a variety of accessories, including camera lens adapters, off-axis guiders, filter wheels and numerous optical systems. The many potential combinations of these items produce an equally large variety of back-focus distances that must be considered to make it all work together. This variety and flexibility, however, also can be confusing particularly for new users.This is one of the reasons why we at Baader Planetarium keep receiving customer inquiries on the subject of "How do I adapt my QHY camera to my telescope?" How do I adapt my QHY camera to my telescope? If you use a refractor, a Schmidt-Cassegrain or a Newtonian telescope WITHOUT any other special optical...
  • PlaneWave's L-series out of this World Tracking Performance

    The L-series lineup was born out of the dream to create the most versatile and cost-effective direct drive mount. Whether your goal is capturing beautiful astrophotographs that are out of this world, tracking fast moving satellites, or tracking objects that are not in orbit, the L-series will help you reach those goals all while being extremely simple to operate and maintain. The results of the L-series tracking performance whether at sidereal, or other rates utilized by astrophotographers, speaks for itself in these sample images captured by our customers. (1) M101 with CDK600 by Kurious George, (2) PK 136+05 with CDK500 by Jeff Lovelace, (3) NGC 4565 with CDK600 by Kurious George, (4) NGC 225 with CDK350 by Kevin Morefield, (5) Komet NEOWISE with CDK600 by...

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