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Meade B 2080 / 56  This 8" SC was a f/6.3 out of the box.

 under construction


 Meade 12" f/10 LX 200 

under construction


SBIG ST4 - Autoguider               This was my first ccd camera. Its autoguiding function was excellent but it was not easy to find to set all the different parameters to its best.

Also on planets it worked very well.  When I  used  the SBIG ST-8 with its dual chip I sold this autoguider. What,  by the use of color filters,  I later regret very much  because by the loss of light gathering power caused by this filters I sometimes could not find a good guide star.



Of course I was overwhelmend by the potentiality of ccd imaging. Finally no more hour long discussions with the photo-shop. So Santa Claus, in form of my wife,  brought me a second-hand SBIG ST- 6. Here its data:







@ -30C





23 x 27 u

375 x 241

8.6 x 6.5 mm

~25 sec






please see also: Bilder - ST-6

Unfortunately a later sold this one too just to finance the 'New'.  It would have made a good guiding camera as well.



SBIG ST- 8E   This camera, at that time still with a serial port,  was sold once at 8.000,- $  How prizes have changed.

But it is a good work horse which sometimes is left in the observatory for several months. Only the desiccant I have to 'bake' more often.

Due to the long download time caused by the serial port (~30sec), I gave the camera to SBIG to have the port changed into USB. This brought me a saving of 25 sec.  It is a pitty that this model still has the small guiding chip TC-211 which has 192x164 pixels with 15x15 mue.  On the other hand my model does have the connection for water cooling which can also be used as an additional cooling device.


please see also:  Bilder - ST-8



Using  exclusive the Meade 12" LX200 classic and because the guiding of this mount was disappointing I bought  together with the camera the AO7 .  For my opinion this instrument is a must-have if you want to do imaging with an LX200 fork mount.



Here one can see the connection of the AO7 to the ST-8. In front of the AO7 sits an 0.63 reducer - also a conncesion to the poor guiding - coupled to the camera by  a "Captains-Wheel" .



To avoid mirror shifting I used a JMI-NGF-S motor-focus  (sometimes together with a focus-motor added to the focus knob of the LX200).



When I started with color-imaging I would have loved to use the SBIG filter-wheel. Not only the bad behaviour of the wheel under cold weather conditions but also the prize made me buy a  Neumann filter drawer .  As long as one is working close to the telescope the manual change of the filters is no problem but takes some time to do.



One way of connection:  drawer - extention - reducer - NGF-coupling

Another way:  "AO7 - drawer "