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    Computer Science, Sci-fi, Comics, Astronomy
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    French Riviera (Côte d'Azur)

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Freedom2099's Achievements


Nebula (2/19)



  1. First one shot with Fujifilm X-T3 and 35mm (50mm full frame equivalent) at F2, a stack of 20x8s frames. The second one is taken with the same camera and lens but when it was darker (in this case a stack of 30x8s frames) The third was taken 56mm F2.8 and it's a stack of 90x4s frames.
  2. Hi guys! I tried the same subject photographed here but using 20sec exposure time instead of 15... here is the result of 50x20sec: I also tried to combine the shots I took for the previous photo with these shots but the final results was not particularly different... maybe even worse:
  3. Thx! The sky is not as bad as a city center one... but living in Antibes, on the sea side, between Nice and Cannes the sky is not that good either.... Inside the square of pegasus I'm able to see maybe 1 or 2 stars if I'm lucky!
  4. I did exactly as stated into the the link you shared. I took around 30 dark frame at the same temperature and condition with the same exposure as the one of the light frames... Still I'm not convinced about the result.... I cannot see much improvement! I'll try to post a comparison this evening!
  5. I have the EQ Wedge... guess I'll have to start using it. I do have a question... is there a big difference between the length of each shot? I mean... is 3x1m equals to 12x15s? In general I'd say it depends from the sensitivity of the camera... meaning that with shorter exposure some info might never appear at all even if I took hundreds of shots.... but is just a guess.
  6. Yesterday I tried with M74... for the first time I tried as well taking the bias, dark and flat frames and combine them... but I did not see any difference in the final result (maybe a little bit better but the improvement was negligible). I guess I'm doing something wrong I'm still amazed by the result though... this is the result of a 50 x 15s:
  7. Atik Titan + Celestron C925 + reducer f/6.3
  8. I forgot to mention the focal reducer f/6.3
  9. I'm using my celestron nexstar evolution 9.25 with his alt atz mount (although I have the eq wedge I still didn't use it) and the camera is a CCD Atik Titan. Here I did not take any dark picture to subtract the noise (I know in theory how should work... but still working on how practically do it). To take the picture I use my mac and the software AstroImager which support my Atik Titan. For the post processing I used pixinsight... althoug so far the best I can do is to align and stack images!
  10. These two photos are mosaics of respectively 20 and 36 photos:
  11. I started astrophotography more or less 4 months ago... I'm still far from the beautiful pictures you keep on posting here... but I think I'm getting better! M77 - 30 x 20s: Sculpture Galaxy - single shot 20s: Skull nebula - 5 x 15s 2x2bin: M33 - 40 x 10s: M31 - 20 x 15s:
  12. The focusing was quite hard... that is the best I managed to achieve! I'll try a Bahtinov mask Setup: Alt-Az mount, not guided. I do have the wedge, but since I'm still practicing with the very basics I didn't used it yet. I'm as well waiting for the reducer (ordered along with the camera and the wedge) but it is still not arrived.
  13. So... fresh from the purchase of an Atik Titan (and still waiting for the 0,63 reducer) I took these pictures using my f/10 Celestron Evolution 9.25: Consider that these are my very first astro-photos! M2: Single shot 7s exposure M15: single shot 10s exp. M17: stack of 5x7s (have to admit that the stacking result is not very different from one of the single shots): M22: stack of 3x7s
  14. Hi again! As I already said in a previous topic I'm willing to start astrophotography... but since all the equipment is quite expensive I'm worried about doing unwise purchases. First: having a fastar compatible scope I'm trying to figure if I should spend the money for the HyperStar lens and for a faster compatible camera (atik 4 series) or if I should simply buy a setup composed by wedge + reducer + camera (attic titan which is less expensive than te 4 series). What scares me about the HyperStars lens is the price (almost a thousand $) and the possible import duty (the company producing the hyperstar lens is in the USA)... but from what I know having a f/2 scope is terrific for astrophotography. But still... being a total noob is it worthy? The second point is the type of camera... mono or color? I know that with the mono I need more shots using filters to achieve colourful photos but I would be able to do spectrometry and photometry as well (albeit I'm not sure I'd do such things, at least in the near future) whereas color cameras are easier to setup. What would be the best choice for a beginner? Thanks for your help!
  15. Thank you to everyone! Now everything is completely clear!
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