Sternwarte




Step-Down Converter for EOS Cameras


In order to be able to use a 12V output of the Asiair Plus for the continuous power supply of the Canon EOS, I have designed a controllable dummy with a small step down voltage converter that regulates the 12V down to 8.4V. On both sides of the converter, short plugs are screwed together to connect to either USB-C female or DC 5.5x2.1 female power adapter. The converter is installed in a Appropriately printed box with bracket attached to the Asiair. Works perfectly..





Konverter


Filter- and Cameaadaptions on ACL200


In order to be able to use either a DSLR or an eyepiece with an Amici prism on the ACL200, I have replaced the standard M48 adapter with a short alternative. With these two versions, you come exactly into focus.





ACL200 Adapter


Motorized fine focusing for the ACL200 APO with the ZWO EAF


A simple but effective fine focusing with a printed holder on the handle. For a short belt length, the EAF is used upside down. The required pulley, ribbon and focuser are standard purchased parts. The correct strap length as well as the necessary voltage was calculated and precisely assembled with our own solution.

Focusing takes place on the front ring of the ACL200's fine focusing, making it very accurate and fast. My concept is More cost-effective and practical than the standard Wega solution which is installed under the ACL200, the center of gravity of the axis of rotation and focuses on the coarse standard ring of the telescope.





EAF


A mobile setup with the new TS-Optics TSAPO60f5Q on a GEM28 with Berlebach tripod


With the new TS-Optics Flatfield APO on a GEM28 with Berlebach tripod once again a mobile setup with convenient ZWO equipment and documented this with several reference shots.

  • Optron GEM28 GoTo Mount
  • TRIPOD REPORT 172 ASTRO + GEM28 Adapter + SHELF
  • TS-Optics TSAPO60f5Q 60 mm f/5 Quadruplet Flatfield APO
  • ZWO EAF5V Focuser with Temperature Sensor
  • Galaxy Viewfinder 8x50 RA, Red 90 Insight with Crosshair Eyepiece
  • TS-Optics Guiding Set with 50 mm Guide Scope and ASI120mini
  • Neumann Aurora Flatfield Luminous Film D=100 mm, with 12 V inverter
  • 2 shortened and assembled heating bands
  • ASI533MC-Pro Camera with Filter Wheel
  • Asiair Plus for complete control of the setup
  • Short and secure cable management
  • Symmetrical design of the imaging train for optimal balance

  • Setup

    GEM28 Tripod-Adapter


    To make the excellent GEM28 mount even lighter, a lightweight carbon tripod is a good choice. This requires a special adapter that I designed and commissioned as a small series production. In the meantime many times, also used internationally.


    GEM28_Adapter


    Rolling hull under CGEMII


    In order to be able to move my CGEMII more easily to the prepared imaging position, I have a highly functional rolling base and made it myself with inexpensive purchased parts.


    Rolluntersatz


    Fine focusing for lenses or the Space/White/Redcat


    A simple but effective fine focusing for lenses on the DSLR with attached Geoptik hot shoe adapter for for the telescopes on the handle. The required pulley, ribbon and focuser are standard purchased parts. The correct strap length as well as the necessary voltage was calculated and precisely assembled with our own solution.

    The Lacerta microfocus can be motorized very easily with the MSM30 from Starlight Instruments (see WhiteCat image)


    Manfoc


    Adapter for the MSM30 focuser on the Esprit80


    To be able to attach the Starlight stepper motor for 2.5" & 3" Feather Touch focusers to the Esprit80, I had Tommy make me an adapter ring. Works perfectly.

    Below Esprit80 with focus motor, flattener, tilt adapter, filter drawer and ASI294 at the correct distance


    Esprit80 MSM30


    Sliding double attachment


    In my experience, one problem with heavy equipment is the manual left/right shifting of the Telescopes to get back into balance, e.g. when the imaging trains change or swaps. For this reason, the prism rail was additionally equipped with a rack and the prism clamp equipped with a gear.

    Obviously, Geoptik found my concept with the rack and gear so interesting, that they recreated it in a similar way without coordination with me. Unfortunately, there is no patent protection on such ideas.


    Doppelbefestigung


    Fitting of an Esprit 100/550 according to my specifications


    When using a large Moravian G3-11000 camera with a space-consuming Offaxis guide, the obligatory 55mm working distance of the original flattener is exceeded. So I decided to to look for an alternative with a longer working distance, namely with the 2.5" full-frame Flattener from Teleskop-Service.

    I also wanted to replace the original 3" focuser with the 3" Feathertouch from Starlight Instrument. In order to have it as stable as possible, the version with only 38 mm travel was used and adapted so that that the focus is reached in the middle of the stroke path.

    And as a third specification, a dovetail rotation adapter should be manufactured so that the second camera, a G2-8300 with its own Offaxis guider, can be easily pushed in and automatically inserted into the the perfect distance as the G3-11000 is.

    Here is the finished Esprit with custom-made adapters from tube to Feathertouch, from Feathertouch to Flattener and the dovetail adapter with 6 screws to attach the camera. Everything perfect solved by Tommy Nawratil and his team.


    Esprit100

    Esprit100

    Esprit100


    TEC Rorationadapter


    In order to be able to rotate my large Moravian cameras on the TEC stably, I designed and made an M68 rotation adapter with 6 locking screws. Very stable.


    Rotationsadapter

    EQ8 Upgrade


    The EQ8 can image beyond the meridian up to the hardware stop at approx. 30° (2 hours), however, even on the short Esprit telescope, the camera would collide with the mount beforehand. For this reason, I have a very stable extension of the telescope adapter (colored red in the picture above) and placed between the mount and the telescope. With this, I was now able to do so even at the worst possible DEC position about 1.75 hours beyond the meridian without it colliding anywhere. For security reasons, I have set a time lock before the hardware stop of the EQ8 with EQASCOM.


    Knicksäule

    Bended pier


    In order to image from east to west continuously without PierFlip even with 2 longer telescopes on my special double mount, the EQ8 (or another mount) must be mounted on a modified bended pier. It can be used at any location, since the pole height is not permanently built into the pier, but is used with the usual methods of mount. I have never understood why in general (as is also discussed in the forums) the polar orientation is shifted into pier depending on the location instead of leaving it where it belongs.

    My concept was realized in a small series by JD-Astronomie for me and 3 colleagues. The response from colleagues who already have the articulated column in productive use is extremely positive. In this respect, I am particularly pleased that my theoretical considerations and plans are proving themselves in practice.


    Knicksäule

    Knicksäule