en:ost:ccds:grunddaten

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en:ost:ccds:grunddaten [2026/04/01 10:06] – rhainichen:ost:ccds:grunddaten [2026/04/01 10:54] (current) – [Technical Data] rhainich
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 Our main cameras are CMOS cameras developed specifically for astrophotography. For deep-sky imaging we use two QHY 600Ms, which offer, among other things, a full-frame sensor, very high quantum efficiency, very low readout noise, and a very low dark current. For these cameras we also have an off-axis guider, one filter wheel with 9 positions, and one filter wheel with 7 positions. Our main cameras are CMOS cameras developed specifically for astrophotography. For deep-sky imaging we use two QHY 600Ms, which offer, among other things, a full-frame sensor, very high quantum efficiency, very low readout noise, and a very low dark current. For these cameras we also have an off-axis guider, one filter wheel with 9 positions, and one filter wheel with 7 positions.
  
-A QHY 268M serves as the main camera for our two [[en:ost:spektrograph:grunddaten|spectrographs]]. We also have a veTEC 533C from Omegon and a range of guiding and planetary cameras. These are used primarily for solar observations or as guiding cameras (see e.g. [[de:ost:ccds:ccdops#Guiding|here]] or [[en:ost:ccds:maximdl#Guiding|here]]) in combination with the QHY 600M and the spectrographs.+A QHY 268M serves as the main camera for our two [[en:ost:spektrograph:grunddaten|spectrographs]]. We also have a veTEC 533C from Omegon and a range of guiding and planetary cameras. These are used primarily for solar observations or as guiding cameras (see e.g. [[en:ost:ccds:maximdl#Guide Tab|here]]) in combination with the QHY 600M and the spectrographs.
  
 We have dedicated a separate article to the [[en:ost:ccds:setup|assembly]] of some of the cameras. We have dedicated a separate article to the [[en:ost:ccds:setup|assembly]] of some of the cameras.
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 The ST-7, ST-8, and STF-8300M are deep-sky cameras, although they are now rarely used due to their relatively small field of view. The ST-i and the Skyris 445C are "planetary cameras" that allow very short exposure times. The ST-7, ST-8, and STF-8300M are deep-sky cameras, although they are now rarely used due to their relatively small field of view. The ST-i and the Skyris 445C are "planetary cameras" that allow very short exposure times.
  
-All cameras can be controlled via [[de:ost:ccds:maximdl| Maxim DL]].+All cameras can be controlled via [[en:ost:ccds:maximdl| Maxim DL]].
 </WRAP> </WRAP>
 <WRAP half column> <WRAP half column>
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 |< 100% 19%>| |< 100% 19%>|
-|                                    |             **ST-7**                  |             **ST-8**                  |              **STF-8300**                 |  **Skyris 445**  |  **SBIG ST-i**  | +|                                    ^     **ST-7**     ^     **ST-8**     ^     **STF-8300**     ^  **Skyris 445**  ^  **SBIG ST-i**  | 
-| **Model number**                   | ST-7XME-D                             | ST-8XME                               | STF-8300M                                 |  Skyris 445C     | ST-i Monochrome        | +^ **Model number**                   | ST-7XME-D        | ST-8XME          | STF-8300M            | Skyris 445C      | ST-i Monochrome | 
-| **Pixel size**                     | 9 $\mu \text{m}$ x 9 $\mu \text{m}$   | 9 $\mu \text{m}$ x 9 $\mu \text{m}$   | 5.4 $\mu \text{m}$ x 5.4 $\mu \text{m}$   |  3.75 x 3.75     | 7.4 x 7.4   | +^ **Pixel size [µm]**                | 9                | 9                | 5.4                  | 3.75             | 7.4             | 
-| **Number of pixels**               | 765 x 510                             | 1530 x 1020                           | 3326 x 2504                               |  1280 x 960      | 648 x 486   | +^ **Number of pixels**               | 765 x 510        | 1530 x 1020      | 3326 x 2504          | 1280 x 960       | 648 x 486       | 
-| **Total chip size**                | 6.9 mm x 4.6 mm                       | 13.8 mm x 9.2 mm                      | 17.96 mm x 13.52 mm                       |  6.26 x 5.01     | 4.8 x 3.6   | +^ **Total chip size [mm]**           | 6.9 x 4.6        | 13.8 x 9.2       | 17.96 x 13.52        | 6.26 x 5.01      | 4.8 x 3.6       | 
-| **Field of view with CDK20**       | 6.9' x 4.6'                           | 13.7' x 9.2'                          | 17.9' x 13.5'                             |  6.2 x 5.0       | 4.8 x 3.6  | +^ **Field of view with CDK20 [']**   | 6.9 x 4.6        | 13.7 x 9.2       | 17.9 x 13.5          | 6.2 x 5.0        | 4.8 x 3.6       | 
-| **Sampling**                       | 1.9 pixels per arcsec                 | 1.9 pixels per arcsec                 | 3.1 pixels per arcsec                     |  3.4             | 2.3 |+^ **Sampling [pixels/'']**           | 1.9              | 1.9              | 3.1                  | 3.4              | 2.3             |
  
  
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 ===== Special Features ===== ===== Special Features =====
-  * An adaptive optics unit, the AO-7, can be placed in front of the ST-7 and ST-8, which can be used for guiding and optimising image quality (see e.g. [[de:ost:ccds:ccdops#Self-Guiding mit der AO-7|here]]). +  * An adaptive optics unit, the AO-7, can be placed in front of the ST-7 and ST-8, which can be used for guiding and optimising image quality (see e.g. [[en:ost:ccds:ccdops#Self-Guiding with the AO-7|here]]). 
-  * In addition to the main imaging chip, the ST-7 and ST-8 contain a secondary guiding chip that allows the telescope to automatically track an object (see e.g. [[de:ost:ccds:ccdops#Guiding|here]]) while the main CCD captures the actual images.+  * In addition to the main imaging chip, the ST-7 and ST-8 contain a secondary guiding chip that allows the telescope to automatically track an object (see e.g. [[en:ost:ccds:ccdops#Guiding|here]]) while the main CCD captures the actual images.
   * The off-axis guiders of the STF-8300 and the QHY 600M have the advantage of being mounted in front of the respective filter wheel, meaning that guiding is independent of the guide star's brightness in the selected filter. As a result, fainter objects can be used as guide stars with these two cameras than is possible with the ST-7 or ST-8.   * The off-axis guiders of the STF-8300 and the QHY 600M have the advantage of being mounted in front of the respective filter wheel, meaning that guiding is independent of the guide star's brightness in the selected filter. As a result, fainter objects can be used as guide stars with these two cameras than is possible with the ST-7 or ST-8.
  
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 Full HD video recording is also possible at a maximum ISO sensitivity of 6,400 (expandable to 12,800). The camera can be controlled via the tiltable and swivelling 7.7 cm LCD touchscreen or via a laptop. The continuous shooting speed is up to approximately 5 frames/s, maintained for approximately 22 shots (JPEG) or 6 shots (RAW). Full HD video recording is also possible at a maximum ISO sensitivity of 6,400 (expandable to 12,800). The camera can be controlled via the tiltable and swivelling 7.7 cm LCD touchscreen or via a laptop. The continuous shooting speed is up to approximately 5 frames/s, maintained for approximately 22 shots (JPEG) or 6 shots (RAW).
  
-It is also possible to [[de:dslr:tethered_shooting|control the camera remotely via computer]].+It is also possible to [[en:dslr:tethered_shooting|control the camera remotely via computer]].
  
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  • Last modified: 2026/04/01 10:06
  • by rhainich