Popular Post +Derbyshire Dave Posted November 12, 2022 Popular Post Share Posted November 12, 2022 This post was recognized by Craig! Derbyshire Dave was awarded the badge 'Picture Of The Month Winner' From the widefield setup, with the Canon 135mm F2 lens and Zwo 183mm camera, this is the same data set from which I produced my hubble palette image last month. But this time I went for bicolour, mapping hydrogen to the red channel, and oxygen to the blue and green channels. I think I actually prefer the result. Click and click again in Flickr for better resolution Flickr will show about 33% resolution though , so the second image is 100% snip of part of the same image to show the real detail.. Interesting to see the diffraction spikes. I stopped the lens down from f2 to f2.8, which I think is the reason. +DaveJW, Bottletopburly, +seven_legs and 8 others 11 Link to comment Share on other sites More sharing options...
+Glafnazur Posted November 12, 2022 Share Posted November 12, 2022 I prefer this one too Dave 👍Great image +Derbyshire Dave 1 Link to comment Share on other sites More sharing options...
Bottletopburly Posted November 12, 2022 Share Posted November 12, 2022 Excellent work Dave 👍 +Derbyshire Dave 1 Link to comment Share on other sites More sharing options...
+Graham Posted November 12, 2022 Share Posted November 12, 2022 I prefer this version as well. It has real depth to it . +Derbyshire Dave 1 Link to comment Share on other sites More sharing options...
Smithysteve Posted November 12, 2022 Share Posted November 12, 2022 Fabulous images, well done Dave, I like both! The full Veil shot really shows the enormity and extent of the supernova event. 👍 +Derbyshire Dave 1 Link to comment Share on other sites More sharing options...
Clive Posted November 12, 2022 Share Posted November 12, 2022 (edited) Yes, the diffraction spikes are caused by the lens iris. You could use filter reduction rings infront of the lens to achieve the f2.8 focal ratio without incurring the spikes. Edited November 12, 2022 by Clive Typo +Derbyshire Dave 1 Link to comment Share on other sites More sharing options...
+Derbyshire Dave Posted November 12, 2022 Author Share Posted November 12, 2022 2 hours ago, Clive said: Yes, the diffraction spikes are caused by the lens iris. You could use filter reduction rings infront of the lens to achieve the f2.8 focal ratio without incurring the spikes. Thanks Clive, appreciate the tip. Link to comment Share on other sites More sharing options...
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