fwm891 Posted March 25, 2014 Share Posted March 25, 2014 (edited) Hi - Image of the area around the Nth American nebula (ngc7000) taken with a prototype 80mm flat field refractor on loan from Altair Astro. Imaged to an unmodified Nikon full frame DSLR. This image is uncropped and is made up of 7 subs: 4x300s & 3x600s at iso 800. Processing has been in PI and PS - hope you like Edited March 25, 2014 by fwm891 Link to comment Share on other sites More sharing options...
dawson Posted March 25, 2014 Share Posted March 25, 2014 It looks very tidy on my iphone screen. So many stars! Do you use any sort of light pollution filter or are you blessed with dark skies? I've be interested to see how much data there is in one of the unprocessed single 300second subs. Lovely. Jd Link to comment Share on other sites More sharing options...
catman161 Posted March 25, 2014 Share Posted March 25, 2014 Lovely Francis. As James says such a rich star field. Beautiful image Link to comment Share on other sites More sharing options...
Guest ecopley Posted March 25, 2014 Share Posted March 25, 2014 That's a lot of stars! Nice. Link to comment Share on other sites More sharing options...
fwm891 Posted March 25, 2014 Author Share Posted March 25, 2014 (edited) Hi James - No filters used, I have some street lighting problems but not much. You can see some of it across the frame... Single unprocessed and uncropped 300s frame. Original tiff is 16bit - 70Mb so I've down sized this quite a bit: Edited March 25, 2014 by fwm891 Link to comment Share on other sites More sharing options...
fwm891 Posted March 25, 2014 Author Share Posted March 25, 2014 Thanks Felix & Edward Link to comment Share on other sites More sharing options...
Guest ecopley Posted March 25, 2014 Share Posted March 25, 2014 Not just Jim who was interested to see that. Thank you. Link to comment Share on other sites More sharing options...
dawson Posted March 25, 2014 Share Posted March 25, 2014 I'm always amazed at how little nebula there appears to be in the single subs! I can make out the dark central bit on the sub, which i presume is a dark nebula of dust hiding the star light from behind, but absolutely no sight of anything red. Stacking and processing is a wonderful thing. Are the two stars (bright white and yellow) named stars? Yes, it is good. You must be pleased. Jd Link to comment Share on other sites More sharing options...
xanthic Posted March 25, 2014 Share Posted March 25, 2014 Very nice that. I find it surprising how much dslrs do actually pick up. Link to comment Share on other sites More sharing options...
+RonC Posted March 25, 2014 Share Posted March 25, 2014 Great image Francis, a rich starfield to be sure! Link to comment Share on other sites More sharing options...
fwm891 Posted March 25, 2014 Author Share Posted March 25, 2014 I'm always amazed at how little nebula there appears to be in the single subs! I can make out the dark central bit on the sub, which i presume is a dark nebula of dust hiding the star light from behind, but absolutely no sight of anything red. Stacking and processing is a wonderful thing. Are the two stars (bright white and yellow) named stars? Yes, it is good. You must be pleased. Jd James: Yellow star is 62 Cygnii and the blue star is Deneb Link to comment Share on other sites More sharing options...
dawson Posted March 26, 2014 Share Posted March 26, 2014 Ah cool. Thanks. Jd Link to comment Share on other sites More sharing options...
Stephen Posted March 26, 2014 Share Posted March 26, 2014 What a great image Francis fantastic Stephen Link to comment Share on other sites More sharing options...
Toymaster Posted March 26, 2014 Share Posted March 26, 2014 Can't believe how many stars there are in the field - Mind blowing for a relative beginner like me. Also interesting to see how little nebula detail there is in the single 300s frame - Demonstrates the additive effect of many photons I guess. Ade Link to comment Share on other sites More sharing options...
Tweedledee Posted March 26, 2014 Share Posted March 26, 2014 I have looked at many images of this region and have mostly failed to see the pelican in the Pelican Nebula. The pelican jumped straight out at me in this one, or is it a pterodactyl That is a lovely detailed and colourful wide field image. Link to comment Share on other sites More sharing options...
Guest peepshow Posted March 27, 2014 Share Posted March 27, 2014 Very impressive, Francis. I don't know if it was taken in a LP area or not but with these images I would always have liked to have seen how the image looked straight out of the camera before asny processing started. A kinda, "This is one I did earlier." Then we beginners would be able to see what might be possible with our own efforts, before and after cooking. Link to comment Share on other sites More sharing options...
catman161 Posted March 27, 2014 Share Posted March 27, 2014 Very impressive, Francis. I don't know if it was taken in a LP area or not but with these images I would always have liked to have seen how the image looked straight out of the camera before asny processing started. A kinda, "This is one I did earlier." Then we beginners would be able to see what might be possible with our own efforts, before and after cooking. Francis has provided a single unprocessed, uncropped 300s exposure as requested by James in an earlier post on this thread. So there is a "one I did earlier" already in the thread Link to comment Share on other sites More sharing options...
Guest peepshow Posted March 27, 2014 Share Posted March 27, 2014 O dear Felix I missed that. Must be getting star bloat in the brain. What a difference a bit of cooking made. Link to comment Share on other sites More sharing options...
Werisit Posted April 23, 2014 Share Posted April 23, 2014 Very nice Francis! I'm amazed at how much Ha your un-modded Nikon has recorded. What model is it? My Nikon D300 doesn't seem to pick anything up. Alan. Link to comment Share on other sites More sharing options...
fwm891 Posted April 24, 2014 Author Share Posted April 24, 2014 Very nice Francis! I'm amazed at how much Ha your un-modded Nikon has recorded. What model is it? My Nikon D300 doesn't seem to pick anything up. Alan. Individual subs look very weak but stacking and stretching really bring the colours through. See post #5 in this thread. I use a full frame D3s but the d300 should be OK. I'm fortuneate to have low LP so that helps no end with the colouration. Link to comment Share on other sites More sharing options...
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