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Old 10-05-2021, 09:17 PM
gb44 (Glenn)
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Eta carina and Southern Pleiades ISO6400

Hi all,
As a bit of an experiment I shot a series of 30 second unguided shots with the modified Canon 50d on a SW Pro 100mm refractor using a LPS filter.
With Eta I got 59 subs with a bit of manual dithering and a resultant crop, while with IC2602 I stacked 49 subs and no dithering at all was used. Processed in Images Plus.

I expected to see more noise - so I was happy with the results.
Previously I posted that I had an odd problem with the camera - I had it investigated and seems likely due to low voltage.

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Click for full-size image (NGC 3372 crop 59x30s6400 ISO 3May21 ED100 50d LPS CombineFilesSigMed IP sm.jpg)
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Click for full-size image (IC2602 49x30sED100 50d 6400ISO LPS 3May21 CombineFilesSigMed IP sm.jpg)
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Old 11-05-2021, 07:03 AM
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PKay (Peter)
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Hi Glen

I would be happy with that outcome

Are you going to set up a guide camera?
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Old 11-05-2021, 08:12 AM
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multiweb (Marc)
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Top shots Glen. Nailed that focus. Well done.
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Old 12-05-2021, 04:24 PM
gb44 (Glenn)
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Thanks Marc , Peter
I was pleased to get 110 subs and only have to discard one as well.
I will use my autoguider setup (OAG, DSI, PHD2, dithering on IP). The Dragons of Ara are calling as next target so I will be interested to compare the high ISO shots with my previous result.
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Old 13-05-2021, 07:45 AM
enaiman (Eugen)
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I really like that you can't see that many tiny stars in the end image. I am always getting way too many of them and can't control them in processing.
I have tried Star Tools for a while, watching every tutorial I could find on Youtube but the end result was not good.

Maybe the new camera will help a little bit ... still waiting for that clear sky night to test it.
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