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--- en:ost:ccds:grunddaten [2022/10/18 10:32] – [CMOS cameras] rhainich
+++ en:ost:ccds:grunddaten [2025/10/07 10:32] (current) – [Main cameras] rhainich
@@ Line 5: / Line 5: @@
 ==== CMOS cameras ====
-Our newcomer, the QHY 600M is a CMOS camera that was developed especially for astrophotography. It is our new deep-sky camera and offers among other things a full format sensor, a very high quantum efficiency, a very low readout noise and a very low dark current. For this camera we also have an off-axis-guide and a filter wheel with 9 positions.
+Our main cameras are CMOS cameras designed specifically for astrophotography. For deep sky imaging we use two QHY 600M, which offer a full frame sensor, very high quantum efficiency, very low readout noise and very low dark current. For these cameras, we also have an off-axis guide, a 9-position filter wheel, and a 7-position filter wheel.
 As main camera for our two [[en:ost:spektrograph:grunddaten| spectrographs]] serves a QHY 268M. Furthermore we have a QHY 485C and a ZWO ASI174.
@@ Line 26: / Line 26: @@
 [{{ :ost:ccds:qhy268m.jpg?300| Our QHY 268 }}]
 |< 100% 27%>|
-|                                  |             **QHY 600M**                  |             **QHY 268M**                  |
+|                                  |             **QHY 600M (2x)**             |             **QHY 268M**                  |
-| **Model number**                 | QHY 600M PRO-L                            | QHY 268M-PH                               |
+| **Model number**                 | QHY 600M PRO-L & QHY 600M PH              | QHY 268M-PH                               |
 | **pixel size**                   | 3.76 $\mu \text{m}$ x 3.76 $\mu \text{m}$ | 3.76 $\mu \text{m}$ x 3.76 $\mu \text{m}$ |
-| **Number of pixels**             | 9576 x 6388                               | 6280 x 4210                               |
+| **Number of pixels**             | 9576 x 6388 (9600 x 6422 with overscan)   | 6252 x 4176 (6280 x 4210 with overscan)   |
 | **Total size of the chip**       | 36 mm x 24 mm                             | 23.45 mm x 15.7 mm                        |
 | **Field of view with the CDK20** | 35.8’ x 23.4’                             | 23.3’ x 15.6’                             |
@@ Line 35: / Line 35: @@
 ===  Planetary/Guiding cameras ===
+|< 100%>|
+|                                    |  **Skyris 445**  |  **QHY 485C**  |  **SBIG ST-i**  |  **ZWO ASI174**  |  **ZWO ASI220**  |  **ZWO ASI678**  |
+| **Model number**                   | Skyris 445C | QHY-5-III-485C | ST-i monochrome | ZWO ASI174MM Mini Mono | ZWO ASI220MM Mini Mono | ZWO ASI678MM |
+| **Number of pixels**               | 1280 x 960 | 3864 x 2180 | 648 x 486 | 1936 x 1216 | 1920 x 1080 | 3840 x 2160 |
+| **Pixel size** [$\mu \text{m}$] | 3.75 x 3.75 | 2.9 x 2.9 | 7.4 x 7.4 | 5.86 x 5.86 | 4 x 4 | 2 x 2 |
+| **Total size of the chip** [mm]         | 6.26 x 5.01 | 11.2 x 6.3 | 4.8 x 3.6 | 11.3 x 7.1 | 7,68 x 4,32 | 7,7 x 4,3 |
+| **CDK20 field of view** [’]  | 6.2 x 5.0 | 11.2 x 6.3 | 4.8 x 3.6 | 11.2 x 7.1 |    |     |
+| **CDK20 sampling** [Pixel per arcsec]  | 3.4 | 5.8 | 2.3 | 2.9  |     |     |
+/*
 [{{ :ost:ccds:qhy485c.jpg?300| Our QHY 485C }}]
-|< 100% 27%>|
+*/
-|                                    |              **Skyris 445**               |          **QHY 485C**                 |                **ST-i**                 |
-| **Model number**                   | Skyris 445C                               | QHY-5-III-485C                        | ST-i monochrome                         |
-| **pixel size**                     | 3.75 $\mu \text{m}$ x 3.75 $\mu \text{m}$ | 2,9 $\mu \text{m}$ x 2,9 $\mu \text{m}$ | 7.4 $\mu \text{m}$ x 7.4 $\mu \text{m}$ |
-| **Number of pixels**               | 1280 x 960                                | 3864 x 2180                           | 648 x 486                               |
-| **Total size of the chip**         | 6.26 mm x 5.01 mm                         | 11,2 mm x 6,3 mm                       | 4.8 mm x 3.6 mm                         |
-| **Field of view with the CDK20**   | 6.2’ x 5.0’                               | 11,2’ x 6,3’                         | 4.8’ x 3.6’                             |
-| **Sampling**                       | 3.4 Pixel per arcsec                      | 2,2 Pixel per arcsec                  | 2.3 Pixel per arcsec                    |
 === Cameras that are no longer in daily use ===
@@ Line 72: / Line 73: @@
 === QHY 600M ===
-For the new QHY 600M we have installed the following filters in the filter wheel:
+We have two filter wheels for the QHY 600Ms. The first is a QHY CFW3-XL with the following Bessel filters:
+^ Filter position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
+^ Filter | H_alpha | OIII | SII | U | B | V | R | I | Clear |
+^ Comment | Narrowband | Narrowband | Narrowband | Broadband | Broadband | Broadband | Broadband | Broadband | |
+The transmission curves of the UBVRI filters can be found on the website of //Baader Planetarium//: [[https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/63/5/ubvri-bessel-filtersatz-photometrisch-1f1.jpg|Filter Transmission]]. The filter curves of the bandpass filters are similar to those of the STF-8300.
-| **Filter position** |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |
+The second is a QHY CFW3-L with the following SLOAN/SDSS filters:
-| **Filter**          |  H_alpha  |  OIII  |  SII  |  U  |  B  |  V  |  R  |  I  |  Clear  |
+^ Filter position | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
-| **Comment** |  narrow band  |  narrow band  |  narrow band  |  broad band  |  broad band  |  broad band  |  broad band  |  broad band  |
+^ Filter | u' | g' | r' | i' | z-s' | y' | Clear |
+^ Comment | Wideband | Wideband | Wideband | Wideband | Wideband | Wideband | |
+The transmission curves of the ugriz' filters can be found on the website of //Baader Planetarium//: [[https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/68/6/sloan-sdss-ugriz-filtersatz-photometrisch-09b.jpg|Filter Transmission]].
+We also have a [[https://www.baader-planetarium.com/de/baader-ufc-(universal-filter-changer).html | UFC-filter-changing-system]] for our RASA 11 V2, which can be equipped with 50mmx50mm square filters. Currently we have a complete set of SLOAN/SDSS filters (see above) and H-alpha, O-III, S-II [[https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/4a/b/35-4nm-f-3-ultra-highspeed-filtersatz-cmos-optimiert-h-alpha-o-iii-s-ii-383.jpg | ultra highspeed filter]].
 === ST-7 & ST-8 ===
 A filter wheel with the following filters can be attached to the ST-7 and ST-8:
@@ Line 106: / Line 114: @@
 ====== DSLR ======
-For short time exposures and lucky imaging there is the digital (single) reflex camera (DSLR): Canon EOS 700D. It has been optimized for amateur astronomers by //Baader Planetarium// by changing the used filters. The transmission properties of the original Canon filters in comparison to the optimized ones can be found at the Baader web page [[http://www.baader-planetarium.de/sektion/s45/bilder/vergleich_400d_baader_bcf_gross.jpg|click to view the image]].
+For short time exposures and lucky imaging there is also a digital (single) reflex camera (DSLR): Canon EOS 700D. It has been optimized for amateur astronomers by //Baader Planetarium// by changing the used filters. The transmission properties of the original Canon filters in comparison to the optimized ones can be found at the Baader web page [[http://www.baader-planetarium.de/sektion/s45/bilder/vergleich_400d_baader_bcf_gross.jpg|click to view the image]].
 ==== Basic data ====