Popular Post Clive Posted March 5, 2020 Popular Post Share Posted March 5, 2020 Last Thursday night (27th Feb), I managed to capture just over 100 mins of wide field Orion using my ‘nifty fifty’ (Canon 50mm F1.8 STM) lens. Orion sits nicely within the 26 x 17 degree FOV. To my surprise, Barnard’s loop was just beginning to show so I took additional exposures on Monday night (3rd Mar) using an IDAS D2 filter in an attempt to pull it further out of the light pollution. Whilst the filter dramatically reduced the light pollution (I could have increased the exposures by at least 3x compared to without it) and Barnard’s loop was slightly more prominent, I don’t think it was designed to be used with an F1.8 lens as, unfortunately, the brighter stars towards the edge of the field showed significant distortion. So, pending much more processing, this is the original unfiltered 75 x 60s, 60 x 20s and 66 x 7s exposures using my Canon 200D with the 50mm lens at F2.8, ISO1600, unguided on an EQM35 mount, HDR stacked in DSS and post-processed using IRIS. I must admit, I’m now tempted to invest in a Hα filter to create RGB + Hα images in the future when appropriate. Sheila, tuckstar, Johnnyaardvark and 7 others 10 Link to comment Share on other sites More sharing options...
Bottletopburly Posted March 5, 2020 Share Posted March 5, 2020 Looking good Clive 👍 Clive 1 Link to comment Share on other sites More sharing options...
+RonC Posted March 5, 2020 Share Posted March 5, 2020 That's a great image Clive, well done that man! 👍 Clive 1 Link to comment Share on other sites More sharing options...
philjay Posted March 5, 2020 Share Posted March 5, 2020 Nuce image Clive, The nifty fifty is a good lens but wide ooen stars get a bit distirted, I stoo mine down to f4 which sharpens the stars uo, It dies mean you have to grab more ecposure but it gives a ckeaner image. Clive 1 Link to comment Share on other sites More sharing options...
+Graham Posted March 5, 2020 Share Posted March 5, 2020 I will have a pint of whatever Phil has had. Clive, +RonC, +Bino-viewer and 1 other 1 3 Link to comment Share on other sites More sharing options...
Clive Posted March 5, 2020 Author Share Posted March 5, 2020 7 hours ago, philjay said: Nuce image Clive, The nifty fifty is a good lens but wide ooen stars get a bit distirted, I stoo mine down to f4 which sharpens the stars uo, It dies mean you have to grab more ecposure but it gives a ckeaner image. I agree that at F4 it gives excellent images but having only a limited time, I compromised and used F2.8 to keep the exposures short. Link to comment Share on other sites More sharing options...
+RonC Posted March 5, 2020 Share Posted March 5, 2020 Did you forget to put your glasses on Phil?? 😎 Link to comment Share on other sites More sharing options...
+Derbyshire Dave Posted March 5, 2020 Share Posted March 5, 2020 Nice job Clive.. Clive 1 Link to comment Share on other sites More sharing options...
philjay Posted March 5, 2020 Share Posted March 5, 2020 53 minutes ago, RonC said: Did you forget to put your glasses on Phil?? 😎 No Ron, fat fingers, small keypad 😁 +RonC and Clive 2 Link to comment Share on other sites More sharing options...
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