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Everything posted by JohnC64

  1. Hi Oli - Welcome to SGL
  2. Hi mike, i am on holiday at the moment but would be happy to send you a copy of the software. It used iokit for talking to the hid but you could use Libusb to do the same job on the pi. I used jet brains dotpeek to convert the hitec Astro dll that comes with their software. It gave me the appropriate bytes to send to the device to control it. i am back at home in February so could send you the source code then. Cheers John
  3. Fantastic. Nice to see it in its new home. Hope you enjoy it as much as I did John
  4. Another option is to go for the chemfix - chembolts. https://www.sealantsonline.co.uk/ProductGrp/004400510001 Just Drill a hole into the concrete and resin fix them in to get a nice flush fit. Then you just bolt into them from the top with standard bolts. The advantage is that if you wish to remove your pier, you don't get any nasty threaded rods sticking out of the ground. Councils use them to fix bollards and the like. Hope this helps John
  5. Hi Rob, I have had a look at the way that the software works for the HitecAstroDC and DC2. Unfortunately it appears to have a different control protocol so I don't think that I will be able to mod my program to suit your needs. I have sent you a PM with details of the VID and PID values that you will require to modify the INDI driver .rules file. That combined with Information you obtained from the INDI team should enable you to get the Focus DC2 working with your system. Cheers John Edit: Looking at the GitHub repo for INDI, It looks like Andy Kirkham has updated the source so that it will work with the FocuserDC2 as the new VID/PID is in the source. Downloading the latest of INDI will probably sort your problem.
  6. Hi Paul, I went for the these http://www.fhbrundle.co.uk/products/0586604000__80mm_Dia_V_Groove_Wheel_One_Ball_Bearing_Internal_Support They fit inside the toprail so give a nice low profile. The first two pics are from inside the obsy and the last one was before I fitted the roof. HTH John
  7. One thing i noticed when I wrote my Mac version of the MHP software was that if I sent a focuser command, whilst the motors were moving, you could not perform any other commands. As there is no feedback from the MHP, you did not know that the command had failed. I guess it will be the same for the windows command too Cheers John
  8. Hi Andy, I got mine from JTW Astronomy via Amazon. https://www.amazon.co.uk/Skywatcher-EQ6-Mount-Pier-Adapter/dp/B00ZMDGTDC They are currently out of stock but you may be able to contact them via their website http://www.jtwastronomy.com There are other suppliers too http://www.billetparts.co.uk/catalog/pier-adapter-p-136.html http://www.green-witch.com/altair-astro-multi-mount-pier-adaptor-2679-p.asp The other option is to go DIY - I remember someone on here using a brake disk with great success. John
  9. Hi Andy, Here are some pictures of the pier I had made. The pier itself is 1.2m high and has an 8" plate on the top and a 10" base plate. The plate is 10mm thick top and bottom and the steel tube is 6mm thick. I had an owl hole fitted so I could get access to under the top plate so i could bolt down the Mount. Then had it sprayed at a local car repair place and they also sprayed wax oil on the inside to prevent rusting. I bolted it down using chem-bolts and roughly aligned it so that it was within the adjustment of the NEQ6 and then fine tuned the PA afterwards. HTH John
  10. Well back in 2014, I said that I wanted to put together a wide-field rig for my QSI 683WSG and I have eventually managed to get started on it. :-) The WSG variant of the QSI 683 has an inbuilt back focus such that canon lenses just don't quite work. (They fit OK on the WS variant with an adapter) To get over this problem I have used a Pentax 6x7 medium format lens that has an back focus register of 84.9mm. QSI used to do a 6x7 lens adapter for the camera but it was about £225!!! but have since stopped making them. I have taken a Canon - 6x7 Lens adapter, bought on eBay 3 years ago, and machined off the canon adapter at the back to give the correct back focus distance. Then drilled 4x 3.2mm holes straight through the back of the adapter into the central lens area. From the other side , I then drilled 5.6mm holes back until about 3mm from the camera end to give a shoulder for the screws used to fix it to the camera. I also needed to cut a step off the top of the adapter so that it didn't foul on the guiding head. This then made it look like the QSI adapter. To attach the adapter, I removed the T Mount-attachmenton the camera and then fitted my custom adapter in its place. To mount it all together and to give some support, I bought a Gemstone Lens support and Attached it to a Mini Dovetail bar. Original QSI Adapter: https://www.optcorp.com/qs-ad5-p67-wsg-pentax-6x7-lens-adapter.html Gemtune Lens Support: https://www.amazon.co.uk/dp/B00VE0KH2Q/ref=pe_385721_51767431_TE_dp_1 Now it is assembled, I still need to check the measurements to ensure that the register distance is spot on and to do a test run (Awaiting a clear(ish) night). I will probably fit a velcro strap to just secure the lens in place and need to get a Teleskop-express micro-focuser large enough for the 6x7 Lens But for now here are some pictures of it all together Cheers John
  11. Hi Dan, The Twin quasar is an amazing object. The gravity lens shows you two images of the same object and that the light from A gets here 417 days before the light from B. Heres a picture that I took back in 2012 with a canon camera (the two 'dots' in the right) It also easy to find as NGC3079 points right at it. John
  12. very nice image - good star colours and the M81 showing some nice dust lanes John
  13. Great result - especially using your guide cam. Look forward to seeing your images when you get your new camera John
  14. Cracking image there Barry with beautiful subtle detail when zoomed in close. John
  15. Thanks very much to Peter and Barry for the kind comments. Yes i think your right Barry, there are some dark rings around the stars. Always something more to learn with processing Ta John
  16. Hi Rob, When I fit my OIII filter, I think i will take the time to replace my Dark and Bias library. Yes there is some vertical banding over towards the right hand and I think a new bias set will sort that out. Cheers John
  17. Hi Daz, I have used the .net interface and that appeared to work fine. What Development environment are you using?. If you use visual studio, then create a .net win forms project, and on the references node in the project tree right click and add reference. Select browse and add the c:\programfiles x86/hitectastro/mhpcom.dll. The API should then appear in the object browser HTH John
  18. Many thanks Paddy and Allinthehead. Yes there does appear to be some bands in there. Its not an issue that i have seen before and possibly due to the new workflow that i tried for the second process. Cheers John
  19. love to see these objects from the southern hemisphere. Nice one John
  20. very nice image. IC410 is a such a good narrow band target
  21. Hi Gnomus, Many thanks for the nice comment. I refreshed my darks, and did an ABE at the linear stage that sorted out most of the issues I had. Then Histogram stretching, followed by a Multiscale linear transform for noise reduction. A slight sharpen and finally a curve tweek to lift the brighter areas. Warren Keller's book is full of information and after going through some of the chapters in the book it has definitely help my processing. Cheers John
  22. Well after a better go at processing after following the Inside Pixinsight book here is a much smoother process John
  23. This image is stunning. Its one of those images that make you say "Wow" outloud. JOhn
  24. Now thats a vast FOV . I really do like the wide field images. I'm in the process of setting my own wide field rig up so hope to get something like you have achieved John
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