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michael.h.f.wilkinson

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Everything posted by michael.h.f.wilkinson

  1. michael.h.f.wilkinson

    Ca-K data stacking away now!!

    1. Drop Of Sun

      Drop Of Sun

      I think you are making a lot of wallets nervous! Look forward to seeing your first haul. Can't wait to see results from the Calcium Quark too, will be interesting to see how they compare, you have a narrower bandwidth?

    2. michael.h.f.wilkinson

      michael.h.f.wilkinson

      First results are in. The Lunt Ca-K is rated at narrower than 2 Å. Not sure about the Ca-H Quark

  2. michael.h.f.wilkinson
    Ridiculous answer by the vendor. One of the very reasons to use refractors is their ease of use "out of the box" and lack of collimation issues compared to reflectors (as repeated frequently by Olly)
  3. michael.h.f.wilkinson

    Just celebrated 25 years with the University of Groningen

    1. Ruud

      Ruud

      25 jaar. Wow.

      Van harte gefeliciteerd!

    2. bingevader

      bingevader

      Congratulations!

      Well done Michael. :)

    3. Knight of Clear Skies

      Knight of Clear Skies

      Many congratulations, that's quite a landmark.

  4. michael.h.f.wilkinson
    I think I might check out the 14mm NAV-SW if I want to replace the 14mm Morpheus (which was not quite sharp at the edge at F/6)
  5. michael.h.f.wilkinson
    All the eyepieces you need? I thought that was a contradiction in terms. Nice case, even nicer contents
  6. michael.h.f.wilkinson
    I am no DSO imager, but I do now something of optics. My physics intuition would be that a slight tilt would result in a band of sharpness across the image, at right angles to the "slope". It almost looks like the optics have some cylindrical distortion, caused by some lack of collimation, perhaps.
  7. michael.h.f.wilkinson
    Stick the Nagler 31T5 in a Powermate, and you will understand why I call it the "Panzerfaust"
  8. michael.h.f.wilkinson
    I still have my Naglers, and they are only going to be replaced by something WIDER (Nikon NAV HW, or ES 92°)
  9. michael.h.f.wilkinson
    Neat case of LVWs PhilJ
  10. michael.h.f.wilkinson
    Nice little bins
  11. michael.h.f.wilkinson
    No, it's either ultra skinny, or obese
  12. michael.h.f.wilkinson
    I gather coating was invented by Zeiss around 1935. As it was considered a military secret, binoculars for sale in the 1930s will not have sported these coatings
  13. michael.h.f.wilkinson
    That is close to my ultra-lightweight travel set: MV 68deg 24mm for wide field, WO Zoom-II 7.5-22.5mm and Vixen SLV 5mm.. Bit more expensive, though
  14. michael.h.f.wilkinson
    Done some rejigging what with the arrival of two big hitters: the Pentax XW5 and the Baader Morpheus 14mm. Still the same case, still with some dangerous empty space. The contents are now: Vixen LVW 42mm, Nagler 31T5, Nagler 22T4, Nagler 17T4, Morpheus 14mm, Nagler 12T4, Pentax XW10, Delos 8mm, Pentax XW7, MaxVision 24mm 68° (to be moved to travel set), Pentax XW5 To the right are two filters (moon and H-beta), an Orion Amici prism (2"), and a Denkmeier Filter-Switch diagonal.
  15. michael.h.f.wilkinson
    My current collection, with the older bins my sons may use to the right. On the left we have the Helios Apollo 15x70 HD, the Vixen New Foresta 10x56WP, and the little Lunt 8x32 SUNoculars. On the left the TS 15x70 (BA-1), Yashica-built Combi-foto 7x50 and my old Bresser 10x50.
  16. michael.h.f.wilkinson

    Some H-alpha solar data cooking away

  17. michael.h.f.wilkinson

    Just spotted the kingfisher in our garden again

  18. michael.h.f.wilkinson

    Will be giving a talk on solar imaging this afternoon

    1. Pig

      Pig

      How did the talk go Michael ?

    2. RichM63

      RichM63

      I would've liked to listen to that.

  19. michael.h.f.wilkinson
    Lovely case Shaun. I should be getting a 5mm XW to add to my XW7 and XW10 shortly. Gorgeous EPs. Can't really make a case for getting a 14mm and a 20mm, let alone a 3.5mm (yet )
  20. michael.h.f.wilkinson
    Haven't visited in a while. Some really great scopes here. I might be getting a 4" F/6.5 achromat some time soon, to make EVEN bigger solar H-alpha mosaics
  21. michael.h.f.wilkinson
    Same here. WAY over my budget. Very nice though
  22. michael.h.f.wilkinson
    Great report. Very useful!
  23. michael.h.f.wilkinson

    Bought an XW5 to go with the XW7 and XW10!

    1. Show previous comments  7 more
    2. michael.h.f.wilkinson

      michael.h.f.wilkinson

      The 14mm for me

    3. John

      John

      Excellent choice Michael !

      The XW's are superb eyepieces. Steve (FLO) advised me to try them many years back but it was a while until I actually did. Hats off to RikM for going for a set way back when they were not so widely recognised. The XW5 is my favourite eyepiece for the Moon and planets - it's a pleasure to view though !

    4. Demonperformer

      Demonperformer

      They are, indeed, lovely eyepieces. I had the 5, 7, 10 & 14, but when no longer able to travel away from my LP sold the 5, 7 & 10 as very little visual being done. They deserve to be well-used. Enjoy the new one, Michael.

  24. michael.h.f.wilkinson
    Amazing detail for a capture of Uranus.
  25. michael.h.f.wilkinson
    Glad you got your first light with the scope! Completely grey here, alas
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