Know-How

  • Baader CMOS Optimized Filters: Unleashing the Full Potential of Astrophotography

    What do you look for in an astronomical filter? Everyone has different requirements and goals and with a myriad of filters available today; how do you choose the right filters to unleash the full potential of Astrophotography? In this blog our customer Ian Aiken gives some high level advice on what to look for when choosing a filter, coupled with reasoning why he choose the Baader's CMOS-Optimized LRGB and Ultra Narrowband f/2 filters, along with example LRGB and SHO images taken with these filters on his Celestron RASA 11 from his Bortle 7 suburban location. New CMOS-optimized Baader filters Blog Post by Ian Aiken: I live in the North East of England in the United Kingdom, which experiences a temperate maritime climate characterized by mild...
  • The Baader Planetarium UFC Design-Guide

    The Universal Filter Changer (UFC) system with its solid mechanics and high flexibility has found a large user base worldwide. Nevertheless, there are always applications that are not covered by the adapters available to date. Therefore, we receive requests for technical drawings from our customers again and again. In the course of further development of our products, we are now pleased to be able to provide the UFC Design Guide. This design guide contains technical drawings with all the relevant dimensions you need to make your own adapters for both sides of the UFC - be it S70 ring dovetail connection on the telescope- side or the eyepiece/camera-side adaptation: UFC Design-Guide: Camera-side UFC adapterDownload as PDF UFC Design-Guide: Telescope-side UFC adapterDownload as PDF This means...
  • Deep-Sky Photography with cooled QHYCCD Cameras

    Revealing the secrets of the cosmos: captivating deep-sky images with cooled QHYCCD cameras   Monochrome camera models As we gaze into the endless expanses of the night sky, we are overwhelmed by the sheer size of the cosmos. Deep-sky photography allows us to capture the celestial beauty of distant galaxies, shimmering nebulae, and elusive star clusters. In this blog post, we will introduce the extraordinary capabilities of QHYCCD deep-sky cameras, specifically designed to unlock the wonders of space and take your astronomical photography to a new level. Unmatched sensitivity for deep sky photography: QHYCCD deep sky cameras feature state-of-the-art CMOS and CCD sensors designed to provide exceptional sensitivity in low light conditions. These sensors are ideal for capturing the faint details of celestial objects, revealing...
  • QHY Cameras for Spectroscopy

      Special feature QHY294:  The QHY294M is technically a special case and is supplied by Sony with a fixed pixel binning of a 2x2 matrix as standard. As a result, the Back Side Illuminated Sensor delivers 11.7 megapixels at 4.63 µm and 14-bit data depth in standard mode (readout mode 0). QHY has managed to switch Sony's "on-chip" binning on and off in the monochrome version of the 294 PRO, thereby enabling two different readout modes. Readout mode 1 "unlocks" the binning to produce 46.8 MP images with 2.315 µm pixel size at 12-bit data depth per pixel. The ability to trigger the 294 PRO with two different pixel sizes also allows it to be used for two different imaging focal lengths to match the...
  • QHY cameras in the professional field

    Scientific Cameras QHYCCD scientific cameras offer the latest technology in scientific imaging at reasonable prices. Scientific CMOS image sensors offer extremely low noise, fast frame rates, wide dynamic range, high quantum efficiency, high resolution and a large field of view simultaneously in one image. In this sense, while QHYCCD cameras for astronomy clearly meet the definition of scientific cameras, QHYCCD differentiates its scientific camera models with additional features not found in similar models for astrophotography. QHYCCD scientific cameras are characterized not only by extremely low noise, high quantum efficiency, and other scientific CMOS features, but by Large area, high resolution sensors, SWIR sensors, polarized light sensors, GPS-enabled timing, external triggers, field programmable gate arrays, 2x10 GB fiber optic computer interface and water cooling options. The...
  • All important helper tools at a glance

    Discover on our page all the essential helper tools specially developed to facilitate your selection for astronomical observations. From specific filter selectors to custom-made dovetail rails, we offer solutions tailored to your needs. Learn more about our products and how they can change your view of the sky. Baader Narrowband/Highspeed Filter Selector To make it easy for you in the future to decide which kind of Highspeed (or Narrowband) filter you need for your telescope, please check the filter selector that provides you the correct individual graph based on your entries. Filter Selector Baader Solar Filter Finder How do I find the right solar filter for my instrument? Use our Baader Solar Filter Finder and choose your observation device. Baader Solar Filter Finder 2" ClickLock®...
  • The Baader FCCT with the QHY 268M on the RASA 8 - Step by Step to Perfect Collimation

    If a sensor diagonal of 22mm is ideal for a sharp image with the RASA 8, but if you have got "only" a camera with a diagonal of 28.5mm is available - is a good image possible at all? I tried this out and will describe here step by step my way to the finished image with the Baader Baader FCCT (Filter Changer Camera Tilter) for RASA 8" and QHY cameras (various versions available) an the QHY 268M ( QHY 268 M/C BSI Cooled Medium Size APS-C Cameras (various versions available) (various versions available) ) on the RASA 8, especially the adjustment of the overall system. I suggest that you read all this before you try it out yourself! For safety's sake, check every step...
  • USB 3.0 - The Data Connection Between your QHY Camera and your Control PC/Laptop

    Many support requests that reach me via Baader Planetarium are related to the increasing use of USB – no matter whether mounts or cameras are connected, the old connections (RS-232, FireWire...) have largely been replaced by USB. The USB connection has made a triumphal march around the world, and the more devices are connected with it, the number of error messages also grows. USB 3.0 stands for Universal Serial Bus and is a very fast data interface that is capable of transferring large amounts of data – including large images – to the PC in rapid succession. The raw image files are becoming larger and larger due to the large, high-resolution sensors, and the frame rates for downloading are also increasing more and more –...
  • Gain and Offset – Darks and Bias of cooled CMOS cameras

    From time to time customers contact us who have bought a cooled CMOS camera, because they are not satisfied with their image results. They have been working with an uncooled DSLR camera or even a cooled CCD camera and compare the old images with what their new QHY delivers. So we often hear: My images show way too much noise and hardly any signal from the subject". And many new astrophotographers (or those used to old technology) write to us: "My old images, taken with my DSLR, show much more of the object, even though the new camera is cooled and is supposed to be much more sensitive. If that were the case, it would be really bad! That's why we want to take a...
  • QHYCCD cameras for Beginners

    The QHY533 M/C cooled CMOS Camera is a very good and reasonably priced entry-level camera. It has everything a modern CMOS camera can do. For amateur astronomers interested in all areas of astronomical photography, the QHY 533 C/M can cover a wide range of your images. With its BSI Sony sensor, the camera is extremely sensitive and low-noise in the deep sky range. Thanks to the good cooling performance, long exposure times can be realized with it. The pixel size of 3.76 x 3.76 µm is optimally adapted for shorter focal lengths of 500 to 750 mm. The exceptionally low noise combined with high sensitivity of the simple and inexpensive QHY-CMOS cameras have made them the choice of many amateur astronomers for solar, lunar, and...

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