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| en:ost:ccds:grunddaten [2026/04/01 10:10] – rhainich | en: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: | + | A QHY 268M serves as the main camera for our two [[en: |
| We have dedicated a separate article to the [[en: | We have dedicated a separate article to the [[en: | ||
| Line 114: | Line 114: | ||
| |< 100% 19%>| | |< 100% 19%>| | ||
| - | | | + | | |
| - | | **Model number** | + | ^ **Model number** |
| - | | **Pixel size** | + | ^ **Pixel size [µm]** | 9 | 9 | 5.4 | 3.75 |
| - | | **Number of pixels** | + | ^ **Number of pixels** |
| - | | **Total chip size** | + | ^ **Total chip size [mm]** |
| - | | **Field of view with CDK20** | + | ^ **Field of view with CDK20 [']** |
| - | | **Sampling** | + | ^ **Sampling |
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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. [[en: | + | * 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: |
| * 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: | * 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: | ||
| * 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. | ||