Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_2019_sp_banner.thumb.jpg.a0ff260c05b90dead5c594e9b4ee9fd0.jpg

Aenima

Members
  • Content Count

    1,494
  • Joined

  • Last visited

  • Days Won

    2

Everything posted by Aenima

  1. Here is a visual explanation you might get on with (watch it twice) http://www.youtube.com/watch?v=SQy1OWfRg-I
  2. I reckon a re-look through some processing tutorials will help. Also if you still get trouble with the core overexposing, and dont like using layers in photoshop, try just adding into the mix several shorter exposures and see how deepskystacker puts it all together...... Regards Aenima
  3. Aenima

    15th 09th

    From the album: 2013/2014 planetary

    jupiter
  4. I really should make more of an effort when it comes to calibration frames, and learn to do them properly in case they add to the problem rather than help. Space and computer processing speed is a problem there, as the d3100 produces files twice the size of my old 300D and takng 3x the number of images gives my poor laptop much grief when processing it all. I was hoping to learn a few tips or techniques regarding capture and processing widefield stuff in general as it seems quite different to DSO imaging with a telescope which I recently started trying to get the hang of. Maybe there is a good tutorial or link that someone can recommend? Thanks to the above posters for the comments and advice, Regards Aenima
  5. Shame this post never became a thread :/ - dont worry it's happened to me a few times Anyhow, the title caught my eye and hopefully this reply will allow anyone feeling generous with their know-how and hard earned experience the opportunity to add something to the subject in question. Here's hoping, Aenima
  6. Thanks. EDIT: sorry I took ages to answer - I was uploading an image that 'stuck' halfway and was watching the busy icon going round :\ My equipment is just piggy backing a nikon d3100 onto the 200p/EQ5 for tracking, and either a 55-200mm nikkor zoom, or the kit 18-55mm and one or two (pleiades shot now in my gallery) a 135mm prime soligor from ebay (ok for a tenner). I usually set ISO at 1600 or 3200 with added exposure comp. +2.0 or thereabouts. Expose for 2mins and stack the subs in DSS - I usually get between 4 and 13 subs, unfortunately Darks are less common and flats give me grief due to the ease with which focus is nudged out while covering the lens with t-shirt When the stacking is done I use layer based editors for levels and curves even though its very unfamiliar territory. The lens is cheap I know but still I could use it for practice which I do need lots of Regards Aenima
  7. From the album: The next step.

    Glad to be seeing it again, cant wait for it to get higher sooner in the night. 200p/spc880nc 3x barlow

    © Aenima

  8. Aenima

    kwik M42

    From the album: The next step.

    Quick couple of 30sec shots while observing jupiter early morning.
  9. Aenima

    pleiades reproc

    From the album: The next step.

    Widefield m45.
  10. Aenima

    M33 restack

    From the album: The next step.

    Restacked and processed to try enhancing the pink ha-regions dotted along the spiral arms.

    © Aenima

  11. Aenima

    DSC268 mooon

    From the album: The next step.

    Full Moon. Harvest moon apparently due to the time of year. Colour showing which is natural just needed a saturation increase. Single shot D3100 ISO 100 Exp. 1/1000 - 200p prime focus (f/5 f-1000).

    © Aenima

  12. From the album: The next step.

    Another object I'll have to return to when I know more about Imaging, Processing and upgraded some of my kit.
  13. Another huge fan of jupiter, so glad its coming round again. I set the alarm for ridiculous past stupid in the morning for a try at a picture, but it was almost blue sky and still not that high up. Anyway, i only have a webcam and 200p explorer so glad to get some kind of detail that morning :recn_Drizzle15_Capture 10_09_2013 05_45_20_g2_b3_ap4.tif Regards Aenima
  14. Hi, As there are many talented imagers here, and i'm struggling with the unfamiliar techniques involved It was suggested I post a thread and hope that anyone can help with the issues I seem to be at a loss on. Apart from inexpensive lenses, the coma and CA I seem to be getting not only vignetting in the corners but a kind of almost 'dirty' area in the middle like vignetting but with a strange colour to it like the whole middle area is not quite stacking right, or its during capture that the problem starts. Also, processing so many stars is overwhelming either the software or me or both, although i'm sort of sure the data is saveable but the processing ive tried so far just seems to make it more messy. Apologies in advance for the bad explanations and babbling, pls be patient with the text in this post. this is double cluster area, the big reddish blotch like a severe vignette - it looks to me like it stacked badly and the centre looks thin and flattened. this looks like gravely snow which got trampled by muddy footprints with ill-defined dark lanes or something. again with the reddish murky look where the 'tracks' are. Sorry for weird analogies but the technical terms escape me. some more vignette type issue. reddish muddy look and the appearance of uneven stacking also in the middle bit. I tried flats but not sure they were done right and the images with flats dont seem any better. These aren't the only problems but i'm not really certain what i'm doing right or wrong to be honest, i'm hoping you folks can shed some light on it. Any help appreciated, and many thanks for looking. Regards Aenima
  15. Hi tich, First of all good luck with getting the hang of your dslr - its not easy to wrap your head around so much info Second, I understand very little of the tech stuff and can only speak from experience - very limited experience it is too. But I hacked my 300D for two reasons - mirror lock up, and ISO 3200. Im very glad I did. To me the higher ISO really help my DSO imaging because my EQ5 struggles to give any longer than 60sec exposures unguided and so when I need maximum light sensitivity - or 'gain, whatever' the boost from 1600 to 3200 really helps to bring objects' detail and colour in the very short exposures that i'm limited to and a lot of the time if your stacking many frames this can help reduce noise afterwards anyway. Also, its handy to quickly test expose to make sure your target is central and higher Iso can speed up this process. However this is regarding prime-focus more than widefield, as I'm still new to lenses Now if I could get 2mins exposures then it would be quite sensible to return to 1600 or even 800 for the reasons stated above - however, your tracking has to be pretty good so the stars dont trail during the longer exposure, else you might as well up the ISO again so you can use an exposure length that allows you to keep the stars round, eg using ISO 800 and exposing longer may be less noisy etc but the stars are mishapen if tracking is off slightly, so in this situation I would think that shorter exposures at high ISO would have the bonus of roundr stars and more light from your target coz the short exposure doesn't give the tracking as much chance to go astray. I once started imaging and nothing would show up even after longer exposures, until I realised it was set to ISO 100 - So it must make some difference to the resulting image. Like I said its just my limited experience and i've bleep all data to back it up, just hope some of this will be of use to you as you figure it out All the best mate in your upcoming sessions, Regards Aenima
  16. Aenima

    Hi from Portugal!

    Hi from me also I would say that this is one of the best places to be for learning and sharing astro related tips and info - some very knowledgable stargazers here. Regards Aenima
  17. Being quite lost trying to process widefield - with a lens - images: hundreds of stars, serious vignetting and weird colour artifacts O.o

    1. JB80

      JB80

      Can you post a thread about it so people can have a look? Maybe we can help out a bit.

    2. Aenima

      Aenima

      Yeah, that could be a good plan, I have a few examples that could use a look by someone who knows their stuff.

    3. Aenima

      Aenima

      Oh well. Worth a try. :P

    4. Show next comments  18 more
  18. Aenima

    moon

    From the album: The next step.

    Used the filter removed 300D primefocus on the 200p.

    © Aenima

  19. From the album: The next step.

    I like the flame nebula and the horsehead appearing was a bonus as well. approx 16 x 1min exposures canon 300D, 200p EQ5 - DSS.

    © Aenima

  20. Aenima

    M33 2nd Try

    From the album: The next step.

    I wanted to try again on this for a while now, a gap in the clouds recently gave me the chance although it was literally twenty minutes: 19 x 60sec subs with calibration frames taken indoors. Quite surprised with the image for such a short exposure time.

    © Aenima

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.