| Joined: | Mon Apr 2nd, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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It was probably the D200 venting steam after having to do ISO1600.
Not sure I will be repeating the ISO 1600 experiment. I am processing last nights images now, the ISO 1600 images are rubbish. I have done the median stack process in PS and using four images of ISO 400 and I get a quite acceptable result, using the ISO 1600 images it looks like a snowstorm!
When I have finished I will also try your stacking method so we can compare. Will try to post some results this evening but my eyes are glazing over already!
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Robert.