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Old 16-04-2019, 12:35 PM
Paulyman (Paul)
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Lagoon and Trifid Again

Last night was fantastic, had the odd cloud but otherwise it was crystal clear. With the moon up I decided to switch to my modded camera with my 12nm Ha filter.

24 x 600s ISO 1600 (modded 1200D with 12nm Ha filter)
12 darks
32 flats
superbias of 100 frames
WO Star 71 and HEQ5 Pro

The mount guided at less than 1 arc second RMS all night and I pushed dithering to moderate every frame.

Processed in PI
Mild TGVDenoise while linear
Even milder TGVDenoise once nonlinear
HDRTransform
Local Histogram Equalization
Mild Curves
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Click for full-size image (ha_moderate_stretch.jpg)
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  #2  
Old 16-04-2019, 12:48 PM
Startrek (Martin)
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Superb image Paul
You nailed it
Good focus, good guiding and lots of long dithered subs is the trick hey
Great work !
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Old 16-04-2019, 01:28 PM
Paulyman (Paul)
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Thanks Martin. I had a go at setting up the internal temperature compensation with the new auto focus and it seemed to work pretty good. Better than just leaving it as is all night which is what I had being doing prior. Dithering is definitely making a difference as is the cooler weather.
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Old 16-04-2019, 01:56 PM
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Great capture..mine is in the oven hopefully I can produce a result half as good...well done.
Alex
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Old 16-04-2019, 02:21 PM
Paulyman (Paul)
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Thanks Alex. Looking forward to seeing your image.
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Old 16-04-2019, 08:16 PM
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I have finished it but will give it a while before I post it ..the colours look crazy even to me...and nothing like the detail in your image.
I only got 20 mins HA and only 10 mins of RBG and no luminance...which I thought I had..but I was falling asleep in the chair at the scope by that stage.
I also managed a NGC3324 which I will post shortly..
alex
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