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Spile

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Everything posted by Spile

  1. I use the fingertip and distilled water method as per my blog to clean my mirror every 18 months or so when the dust has built up to a degree that I am uncomfortable with.
  2. Another vote for the Baader Hyperion IV. I combine mine with a 30mm ultra wide when I need a bigger field of view but it’s not an issue for me in reality.
  3. If I had to collimate my reflector at a particular angle I would be worried.
  4. I’ve created a list of 500 double stars rated on a five point scale that you may find useful.
  5. This is what I get from your earlier image. I couldn't see the edge of the sight tube in the last image so you might want to take a picture through a cap. Nevertheless the secondary looks good.
  6. Ignore the clips until steps 1 and 2 have been completed so a=b=c=d and e=f and the cross hairs of the Cheshire eyepiece and sight tube and and the dark offset secondary reflection (x2) is offset toward the primary mirror.
  7. That has definitely not been my experience of CN ; the moderators there have never had an issue with my posts apart from kindly letting me know they had moved one to a different sub forum. The forum software on SGL is definitely better designed in my opinion.
  8. As you can see I am also a zoom fan. I went for the Baader but user reviews of the Svbony equivalent are excellent so I would go for that.
  9. Congratulations. A fantastic reference.
  10. Whenever I need to check or confirm details of a double star I always refer to Stelle Doppie https://www.stelledoppie.it/
  11. I would recommend checking the alignment of a primary mirror with a cap.
  12. One thing to bear in mind is that as well as using a star you will need to use high magnification. I centre (this is important) Polaris in the eyepiece using high (200X) power. I move the focuser slightly in and then out and compare both views. The out of focus views show unbroken, concentric rings.
  13. I couldn’t use a RACI without a straight through non magnifying finder.
  14. Spring loaded rather than fixed surely?
  15. For the secondary mirror use and trust the Cheshire eyepiece and sight tube combination tool. Keep the cap for alignment of the primary.
  16. The best way to rule out collimation as a potential issue is to check the alignment of your mirrors. If your secondary is concentric a=b=c=d and e=f and the primary donut is in the middle of the ring of the cap then your good to go.
  17. These are with a smartphone and NexYz unprocessed and no stacking.
  18. Yes I have one and I’ve managed to grab some reasonable shots with it. One thing I have found is that with a heavier phone it can flex so be wary of that. It’s designed to allow movement across all three planes but it is quite heavy as a consequence. I don’t bother with any more because I have realised that actually seeing rather than recording floats my boat.
  19. It’s a difficult question to answer. Almost certainly your telescope will spend most of its time gathering dust as you wait for the clouds to clear. Take into account that when it is clear seeing might be poor or you might have something else to do and that might lead you to think it’s not worth it. It is for me because I am not in a rush to do everything and am in for the long game.
  20. As @Ricochet states, the star test will not tell you if your secondary is misaligned and in addition to the check list above, it needs to be carried out under high magnification.
  21. Personally the 8” is the right weight and size for me. If you are unsure about the 10”, I would go and see one to see you can accommodate it.
  22. My guide explains the relationship between the outer screws and central bolt which work in a push pull way. As @Ricochet says in order to confirm the secondary is aligned you need to see the outside of the sight tube. Place a sheet of paper behind the focuser and take the picture again. This is what you are aiming for…
  23. A great price and the straight through finder is easily swapped for a RACI. I don’t like the rack and pinion single speed focuser though.
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