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About pipnina

  • Rank
    Proto Star
  • Birthday 15/02/1998

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    Devon, England.
  1. I found that, maybe because the noise changes so fast, it brings out fainter detail in even short exposures. Could swear HH didn't show half as much in stills.
  2. It was! So far it's been worth every penny.
  3. Surprised so much came out in 30-second subs, but here it is: I didn't integrate this into a single image because of the cloud presence and realizing I had made focusing errors. About 30 minutes of photos, 30 seconds each @ 800iso & f2.8 A lot is visible though, the flame, m78, horsehead. Orion looks good as well for such short shots.
  4. You should be able to achieve multi-minute exposures even at 300mm if aligned properly without that much star trailing. I would check to make sure you have the star adventurer on the right setting, the polar alignment has been done correctly (read the manual again) and also make sure your tripod is on even and relatively firm ground.
  5. Stellarium also has a plugin (installed by default, but needs to be enabled in settings) that lets you do the same, which I prefer personally.
  6. Hello. What focal length was that photo taken at on your 70-300mm lens? I use a Nikon D3200 (same sensor format) with a Sigma 105mm f2.8 and I can manage 5 minute exposures with less star trailing. Have you made sure your polar alignment is correct? (Remember the image produced by the polar scope is inverted horizontally and vertically) I wouldn't put anything with a focal length too long on the SA, I would be reluctant to put anything longer than 300mm but i don't really know the true upper limit. This was taken with my 105mm, so I imagine your lens at 200 or 300 mm would produce very detailed results.
  7. That's a very interesting idea, I may have to research this further. Cheers for the info.
  8. Hmm, I wonder if the problem will be more based around budget constraints than anything else. DX zoom lenses (like the 70-300mm) sound good for the fl (and cheap!), but there might be some trouble returning to the same zoom level for future shots and they are a lot slower. No idea on their quality either.
  9. I've been thinking about a lens for my nikon in the region of 200mm fl, because galaxy season approaches and 200mm is the longest I can get with my star adventurer according to the specs. However actual astro gear never seems to go below 350/400mm (and even then, it's in the region of £3k upwards!) and I am struggling to find prime lenses in the right focal length. Any suggestions?
  10. NGC4565

    14 hours! I'd be well chuffed if I were you! Cracking image, the detail and colour in the disc is incredible!
  11. Do you trust your Automation?

    I don't have an observatory, but I like to have a certain amount of trust in my kit and neighborhood (although I wouldn't leave it in the front garden!) simply because I don't want to be stood outside in the cold for hours!# My biggest worry is rain, as mentioned above, but other than that I just try to make sure its set up properly before I leave it alone. If the images get worse as they go on, I'll live with it because at the end of the day it's still saved me a lot of time stood outside. If I *did* have an obsy, perhaps I would use CCTV & connect a small PC in the dome to the network to share the pictures indoors.
  12. Does this apply only to single subs or also to stacked images? If I had 4x30s shots and 1x2m shots, would the signal/noise be the same (only accounting for photons, not read noise or dark current or other factors.)
  13. So I get more noise from collecting more photons? I'm not sure I follow :/ I would have thought it to be the other way around.
  14. If you're having success then that's excellent, but generally I would advise to learn star hopping with the red dot and/or a finderscope as well. Happy hunting.
  15. Unfortunately, setting circles are basically useless. On cheaper mounts like the EQ2 they are too small and poorly manufactured to be useful, on more expensive mounts they don't exist because you can tell them where to point after alignment. The best way to find objects is by star-hopping and using Red-dot finder / Telrad and a spotting scope. I went through this very experience myself when I first started