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Old 08-10-2018, 09:43 PM
Gavin1234
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Newbie Horsehead

Hi, I usually stick to the beginners forum being new to this however I think I’ve pretty much finished with this image (for now anyway) so I thought I’d show it to a bigger audience.

Feedback and suggestions are very welcome.

It’s 134 x 5 min subs. Taken on a ASI071MC through a SW Esprit 100 ED on a CGX mount from my backyard in Kellyville, Sydney. Stacked & Processed in PixInsight.

Here’s a link to it on Astrobin; https://astrob.in/full/370503/0/
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Old 08-10-2018, 10:31 PM
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LewisM
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Looking at the massive full res, I can see left side - mostly at the top - tilt. The right corners look OK.

11 hours is a good whack of data... wish I could get half that I think there is more detail you could coax out of those 11 hours yet.... I gave it a crack
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Last edited by LewisM; 08-10-2018 at 11:06 PM.
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Old 09-10-2018, 12:55 AM
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petershah (Peter Shah)
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lovely shot there Gavin
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Old 09-10-2018, 01:15 AM
Gavin1234
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Thanks Peter and Lewis.

Lewis, sorry to ask what is probably a silly question but what is tilt? Is that rotation? Your version looks fantastic, how did you get so much more color?
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Old 09-10-2018, 07:07 AM
Placidus (Mike and Trish)
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Lovely work, Gavin. Very good colour, lots and lots of depth. Possibly a tiny bit over-smoothed so the detail is starting to posterize a bit. Looking forward to seeing more of your work.
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Old 09-10-2018, 08:54 AM
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LewisM
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Quote:
Originally Posted by Gavin1234 View Post
Thanks Peter and Lewis.

Lewis, sorry to ask what is probably a silly question but what is tilt? Is that rotation? Your version looks fantastic, how did you get so much more color?
Tilt means one corner of your camera/image train set-up has a slight tilt in one direction, meaning the image sensor is not orthogonal/perpendicular to the scope itself. This manifests as elongated stars/slight out of focus issues in corners - in your case, top left side. It's only noticeable in the full res image, but it is there. There is a small amount bottom left too.

Colour was tease out gently in PI using a few tricks, saturation boosts, masked stretches etc. There is a LOT of data even after I just did a simple screen transfer stretch which I then enhanced with saturation and the like.

Last edited by LewisM; 09-10-2018 at 02:46 PM.
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Old 10-10-2018, 01:17 PM
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strongmanmike (Michael)
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Pretty good shot Gavin ...and Lewis looks to have demonstrated there is a little more lurking in that data too

Mike
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Old 10-10-2018, 02:02 PM
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multiweb (Marc)
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Very nicely done. Good color too.
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Old 18-10-2018, 08:42 PM
Ross G
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A very nice looking Horse Head photo Gavin.


Lots of detail and great colours.


Good luck.
Ross.
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