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jACK101

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    81
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About jACK101

  • Rank
    Nebula

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  • Gender
    Male
  • Location
    South West Scotland
  1. Does a reliable card reader exist, I seem to go through them regularly. Is it best to pay £20-£30 or are they all cheap and nasty and should be regarded as disposable?
  2. jACK101

    M31

    I am sure you are correct in suggesting "only use the longest exposure", but I am coming at this from an amateur photographers standpoint. If I did that in conventional photography much of the image would be grossly overexposed. Why is astrophotography different? Thanks Jack
  3. jACK101

    First Time Sharing

    Super
  4. jACK101

    Horizon Tue 7th

    I actually thought it was OK. I think it would have been interesting to a wider audience than people who are astronomy enthusiasts. That is quite valuable because it could bring new blood into our hobby. I agree with Gina that it would be helpful if they distinguished between real images and CGI's
  5. jACK101

    Horizon Tue 7th

    I
  6. jACK101

    Using APT and PHD2 together.

    Marci, Thanks very much Jack
  7. jACK101

    Using APT and PHD2 together.

    Marci, Thanks for your reply. This is exactly what I want to do, i.e. feed the results of plate solving back to the mount. According to the Celestron website an RS232 cable connected from the serial port to the hand controller should do this. Is this what you mean by an EQDir cable? I am using an old PC which has a serial port. Thanks again Jack
  8. I have set up my Celestron CPC 925 to guide using a Zwo ASI120mm camera and PHD2 software. In addition I use the full version of APT to control my Canon 650D. The Zwo is connected to the PC via a USB cable and also to the Aux1 port on the mount. I would like to use plate solving with APT. Do I need another cable from the PC directly to the mount or would it be possible to use the guiding cables? I have not yet tried the guiding system. We have had weeks of clear skies but very little darkness. We now have more darkness but also lots of clouds. Thanks Jack
  9. jACK101

    Got a shot of eclipse!

    It even had a label, a grid and amazingly the moon had 4 moons of it's own. Stellarium is wonderful
  10. jACK101

    First light optics

    I have bought a few things from FLO recently. I have nothing but praise for their speed of response and their after sales service. Their patience is endless.
  11. jACK101

    How do amateur astronomers make money?

    For 30 years I owned various sailing boats. Sailing has been likened to throwing blank cheques into the water. Was it worth it? Undoubtedly, it has given me memories that will live with me forever.
  12. jACK101

    Talk to a Photographic Society ???

    I was given tickets for an astrophotography lecture one Christmas. The talk was entirely about cameras, tripods and terrestrial photos. I felt so short changed that I wrote to them later saying I was disappointed not to have seen deep sky pictures. Having seen some of your images I would suggest it is essential that you show deep sky images. That is the area that amateur photographers will know least about and will be most interested in. All the best. Jack
  13. jACK101

    PHD2 Setting Up

    Thanks, I reduced the gain to 1 and managed to get an image to focus. Jack
  14. I have a Celestron CPC 925 telescope and I am using a Zwo ASI120MM camera to guide using PHD2. I have focused the telescope in daylight on a neighbours TV aerial using my Live View screen on my taking camera, and I am trying to get the Zwo also in focus. The image I am getting on the PHD2 screen bears no relationship to a TV aerial, it is more like a carpet design. I have tried altering the Gamma slider and trying all exposures from 0.001 sec up to 30 seconds, changing the Gamma slider and also the position of the camera. All that happens is that the image gets darker or lighter as the Gamma slider is moved. I have my taking camera, a Canon 600D set up at 100 ISO and exposure of 1/800th sec. This gives a properly exposed image on a bright sunny day. I have also tried changing the Zwo exposure on PHD2 to 0.0001 sec on the custom section of the exposure bar. According to the writer of the PHD2 Manual, this setting up should be done in daylight and this seems to be very sensible. I have read on another website that what I am trying to do is impossible and that this focusing adjustment must be done on a night sky. I have also read about people who claim to have done what I am trying to do in daylight. As usual, in my experience, I am running into difficulties on what should be a simple process. There are 2 possibilities: I am stupid, and there is an obvious answer which I cannot see. The writer of the manual is wrong, and this operation needs to be done in the dark. ( a feeling I am becoming used to) Can anyone clarify. Thanks Jack
  15. jACK101

    Lunar Imaging Books

    There is a good book called "Shoot the Moon" by Nicholas DuPont Bloch. It can be seen on Amazon at https://www.amazon.co.uk/Shoot-Moon-Complete-Guide-Imaging/dp/1107548446/ref=sr_1_2?s=books&ie=UTF8&qid=1525437756&sr=1-2&keywords=shoot+the+moon. Second hand copies are available for around £9. This book was reviewed by Sky at Night a few months ago. Hope this helps
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