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robindurant

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About robindurant

  • Rank
    Sub Dwarf

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  • Website URL
    http://www.robin-durant.com

Profile Information

  • Gender
    Male
  • Interests
    Astronomy
  • Location
    Sussex
  1. Hi single shots even at 30 secs are OK and Ive checked and cleaned all the optics
  2. The image has not been turned it is as you see
  3. I have attached 2 images from last night using an H-Apha filter due to the Moon being up, however the target was well away from it and should according to the Filter specifacation not effect Ha imaging. I reduced the exposure to 60 seconds as suggested by many and set iso at 3200 ( grainy but a good setting for accenting the problem) 10 and 5 exposures, stacked them with Deepskystacker, part processed on PS . As you will see it has made no difference whatsoever to the rotating marking or smearing effect I have checked the optics in the Scope and the DSLR Could this be a camera sensor fault or dodgy DSS software, although it stacks with no effort. I have tried every settng on "Preference" on DSS inclusing the ones for Ha images, makes no difference Im now at a loss as to what to try next
  4. No Im in a situation where I can only veiw from SE - SW but have produced reasonable images, this is new
  5. Many thanks Steve, I will try that Thanks Olly
  6. Can you dither manually without software, say with your hanhset while exposing , if so how, thanks
  7. Thanks chaps for your help. The Horsehead target was only 45 degrees and I have just processed some images taken last night using iso 1600 and 90 seconds again at the Horsehead and the images have the same rotation problem. I have tuned this mount and it does now produce good images at 90 seconds iso 1600 at even higher altitude than 45 degrees, the attached image is at those settings
  8. Thanks for replying. I know that AltAz mounts are prone to this rotation, however the stars are not elongated and using DeepSkyStacker this should handle this small amount of rotation that these 6 frames developed or maybe not
  9. Can anyonetell me what is causing this circuling, Im using a WO Z71 on a iOpton AZ Goto mount 3mins @iso 3200 , high I know but for testing. I have a Flattener fitted which is variable but have set it at 71. I have attached 2 images stretched to show the problem. the object was at appox 45 degrees altitude, low Moon well away from the Horsehead, the first image was with a Ha filter and the other without any. I know a alt az mount is not ideal for imaging but I have had reasonable results before
  10. I've emailed Altair Astro but still waiting for an answer and now have contacted iOptron support and again waiting, meanwhile my warranty expiration gets nearer !!
  11. Can anyone tell me where I can download a "Strip down" or repair manual or instructions for this Mount, I have a knocking noise on slewing and need to inspect it
  12. I have tried altering the balance as Sub Dwarf suggested and Davey-T I am using a newly replaced unit as the previous one was worse - Demon[erformer, I put the wrong image on but it shows that the trails differ in direction when alter the weight/ balance etc . I will look up the link.
  13. Star Adventurer, Canon DSLR - Williams Optics ZS61 Telescope ;; I am getting double and treble joined up stars when imaging when imaging only at 60 seconds. I have carefully balanced the Mount and Scope and polar lined well. I have been advised that it is cable snagging but I have no cables. Ive tried various movements of the weights and scope, It is a heavy duty Tripod , weighted and on anti vibration mounts, It is though the mount is badly tracking and taking multi shots joined together, My 2 test images are a full one and it zoomed shot at 45o alt East. Am I asking too much from this mount, I would like to track at 2 mins
  14. How long an exposure can you obtain with that without serious star trails
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