Gildan Posted August 17, 2013 Share Posted August 17, 2013 Hi all.For quite some time I wondered what could I capture with my Atik 383L mono camera using a normal DSLR objetive (Tamron 18-200 in this case), so I built myself an adaptor that would allow me to hook up the objective to the filter wheel and reach the required 44mm backfocus.Off I went with my imaging mate (who acted as "automatic" focuser) to try out this setup and shot at Cygnus in narrow band (Ha and Oiii). It as a rather bad night in terms of seeing, quite humid and with little time as we knew clouds would roll in eventually. So, for the trial, we went bin2x2 to keep exposures short. It was just a trial, after all.As expected, clouds rolled in but we did manage to take 7 subs of each filter of 600s duration each, and this is what we got.I must admit I was fairly surprised!. You can see it at full resolution here (bin2, so it doesn't get all that much bigger). I will have to reshoot this one at bin1 sometime!The second image is of the core of the Milky Way in LRGB (8x600s in luminance bin1, 6x250s in each RGB bin2) just over a week ago. I had to crop quite a bit the left side of the image due to trees and horizon getting in the way.Not much one can do to those stars in the corners...Full resolution here.I hope you enjoy them!.Dan. Link to comment Share on other sites More sharing options...
Gildan Posted August 17, 2013 Author Share Posted August 17, 2013 Er.... wrong part of the forum to post this, sorry!. Now, where's the "edit" button? Link to comment Share on other sites More sharing options...
VigdisVZ Posted August 17, 2013 Share Posted August 17, 2013 Wow, these pictures are really inspiring. Thanks for sharing Link to comment Share on other sites More sharing options...
laser_jock99 Posted August 17, 2013 Share Posted August 17, 2013 Amazing wide field images! Link to comment Share on other sites More sharing options...
Rustysplit Posted August 21, 2013 Share Posted August 21, 2013 Beautiful Cygnus shot!! That has blown me away. More! More!! Link to comment Share on other sites More sharing options...
Mr Bergman Posted August 21, 2013 Share Posted August 21, 2013 Beautiful work! Link to comment Share on other sites More sharing options...
robbie c Posted August 26, 2013 Share Posted August 26, 2013 Stunning well done Link to comment Share on other sites More sharing options...
Gildan Posted August 31, 2013 Author Share Posted August 31, 2013 Thanks!.I'll try to post other widefields on the right area of the forum next time, though. Link to comment Share on other sites More sharing options...
StuartJPP Posted September 1, 2013 Share Posted September 1, 2013 Very good! Link to comment Share on other sites More sharing options...
Space Ranger Posted September 1, 2013 Share Posted September 1, 2013 Wow! What a wonderful and unusual view of Cygnus. Great work. Link to comment Share on other sites More sharing options...
swag72 Posted September 1, 2013 Share Posted September 1, 2013 Fantastic widefield. How did you put together an adapter from the lens to the CCD with the correct back spacing that gave you enough space for a filter wheel? Link to comment Share on other sites More sharing options...
iksose7 Posted September 1, 2013 Share Posted September 1, 2013 Fantastic! I take it you were imaging at 18mm? Link to comment Share on other sites More sharing options...
Gildan Posted September 1, 2013 Author Share Posted September 1, 2013 Fantastic widefield. How did you put together an adapter from the lens to the CCD with the correct back spacing that gave you enough space for a filter wheel?I first figured out the required extra distance to reach the 44mm backfocus, which I think was 5mm. Then I picked up aluminum plates of 2 and 3mm, as well as the thin metal pressure adjustment ring (or whatever its called) from an old EOS 20D. I had to machine all the parts for them to accept a canon lens as well as to be able to fit the thin metal ring inside the two aluminum plates. Get the holes in the right places to screw tha adaptor to the filterwheel and that was it.About all I have to do all this is a small drill press, a fretsaw (yes, I did most cutting of aluminum with this) and some dremmel bits, so it all was fairly complicated. Took me a whole weekend...There are adaptors to get just this for the 383L, using a single filter box but, considering their price, I decided to build it myself with scraps I already had lying about and still use a filterwheel. The cost was just a weekend of fun (right until I ask for a spare part of that thin metal ring to put back into the EOS 20D)Fantastic! I take it you were imaging at 18mm?Somewhere between 18 and 35mm, maybe around twenty-something, can´t really say which. Since there is no communication between the camera body and lens, the information is not recorded. Link to comment Share on other sites More sharing options...
jammo Posted September 5, 2013 Share Posted September 5, 2013 They are lovely, the subtle colour is amazing Link to comment Share on other sites More sharing options...
neil groves Posted September 10, 2013 Share Posted September 10, 2013 absolutely stunning colours, I never knew there were so many stars in the Cygnus region of the sky.Neil. Link to comment Share on other sites More sharing options...
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