Jump to content

Narrowband

PeterCPC

Members
  • Posts

    8,156
  • Joined

  • Last visited

Everything posted by PeterCPC

  1. Will they not just vacuum off? I would be loathe to try to brush them as it may scratch the sensor. The windows can be replaced. I think that you won't know for sure until the sensor is cleaned and tried out.
  2. No. Other way round. You need to take flats each time you use either scope whatever the camera as it will help eliminate defects in the image train like dust. Darks and bias can be used again as long as the conditions are similar i.e temperature.
  3. Darks and bias are specific to the camera. Flats are specific to the scope and camera.
  4. I don't think the C8 is ideal for DSOs (I have one) but something like a small refractor such as ED80 would be lighter, easier to guide etc.
  5. I see what you are saying but the top graph doesn't end as such. the red line continues but I don't know what that means.
  6. PeterCPC

    Hi

    Hello and welcome.
  7. Good idea. Some filters can cause bloat.
  8. Have you tried without the filter?
  9. We all get nights like that. Glad you managed to fix it up ok.
  10. Noted but how, in good conscience, could I sell the scope on at some point without declaring this issue. If I do who would buy it? I wouldn't. I feel that I am left with no choice but to see if it can be improved. If not then I feel it could be sold on knowing that I tried. It's odd that the telescope was fine during it's warranty period and then develops this fault but that's just my bad luck I suppose. I expected better from a scope at this cost.
  11. I am not that confident as it is out of warranty.
  12. No of course not. Thank you for all your help. FLO has agreed that there are pinched optics so I am trying to sort out a resolution.
  13. I would worry about this in case I do it too much. Are they around the lens cell under the dew shield?
  14. @Adam J Thank you for your efforts, really appreciated. I have referred the issue back to FLO to get their comments. I'm not worried about the corner stars - I am making changes to the spacing.
  15. @Adam J Tried again with the artificial star last night and the air was much less turbulent. Temperature was 5C. When I transformed these from FITS to jpeg they were much brighter than they appeared on the laptop screen so the first one showing the star in focus (by Bahtinov) is not much help I think. I managed to darken the others sufficiently I hope. 1-6 were taken from in focus going out. 7-10 were taken just past focus going the other way (if that makes sense)
  16. Astro gear is usually valued at about 70% of new prices if it's in good condition. At the end of the day it's what anyone else is prepared to pay for it.
  17. Yes I let the scope cool for about an hour first. I'll try again soon.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.