M-92 HDR Image

User images created with StarTools.

M-92 HDR Image

Postby Reverend_Coyote » Sat Aug 11, 2018 10:55 pm

Hello y'all,

this is my first posting in this forum. Still trying to get comfortable with StarTools, am now at the point of starting to like it. This M-92 ain't my first image processed with StarTools, but so far my best result. I would like to get some comments whether the outcome is ok, so-so, or completely beyond any hope.

Canon EOS-60Da (original version)
3 single images, 15/60/240 sec, dark frame calibration
Nasmyth Cassegrain 1065/15000mm, Focal Reducer (ca. 3900mm)
APT (camera control), Canon DPP4 (HDR-ing), StarTools (processing)

I first processed all three calibrated input images (15/60/240sec) with StarTools,
before they were HDR combined, and afterwards retouched the resulting image from the HDR process again.

The color halos around the brighter stars are from the focal reducing system, which is soon to be replaced by something more suitable for imaging.


Greetings from Germany, Gerd
Attachments
M92_HDR.jpg
M-92, Hercules
M92_HDR.jpg (509.97 KiB) Viewed 482 times
I looked at IT and IT looked back at me.
And, blushingly, IT retreated - the Universe.
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Re: M-92 HDR Image

Postby happy-kat » Sun Aug 19, 2018 8:18 pm

There are lots of stars picked out, very sparkly.
Did you use the wipe module?
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Re: M-92 HDR Image

Postby Reverend_Coyote » Mon Aug 20, 2018 9:31 am

Hello happy-kat,

I processed the single raw images (15/60/240secs) first with StarTools, loaded them with option #2 (linear, was bayered, not whitebalanced), modules used in following order:

AutoDEV, Wipe, AutoDEV, Bin, HDR, Contrast, Life, Deconv, Flux, Denoise (tracking off), Color


then put them together as HDR image in Canon DPP4 and touched the resulting HDR image again with StarTools:

Develop, Wipe, Sharp, HDR, Life, Denoise (stop tracking)


Obviously I loaded the HDR image again with the option #2 (linear, was bayered, not whitebalanced) although this was no longer a linear image anymore. I am still experimenting with StarTools and trying to find the right way to do things.


Greetings, Gerd
I looked at IT and IT looked back at me.
And, blushingly, IT retreated - the Universe.
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Re: M-92 HDR Image

Postby Rkonrad » Tue Aug 21, 2018 6:42 am

I like the detail very much but am wondering about the colours. As I understand, globular clusters are amoung the oldest parts of the universe so there so should be little "blue" or "red" (new creations) but mainly "yellow - white"(much older). It would be great if you would feel comfortable sharing your stacked tiff or fit for anyone on the forum to work on.

Cheers

Richard
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Re: M-92 HDR Image

Postby Reverend_Coyote » Wed Aug 22, 2018 1:41 pm

Hello Richard,

I'll try to upload the dark-corrected but otherwise unprocessed images onto my provider's FTP space tonight, so that everyone interested can give her/his best shot at the material. I hope this will work over my slow internet connection, if so I'll post the link here.

Gerd
I looked at IT and IT looked back at me.
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Re: M-92 HDR Image

Postby Rkonrad » Fri Aug 24, 2018 5:28 am

Whenever you can - looking forward.

Richard
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Re: M-92 HDR Image

Postby Rkonrad » Wed Aug 29, 2018 8:45 pm

Hi Gerd,

Just to be clear, I would be interested only in the unprocessed tif/fit that is already stacked. You had mentioned images not image in the previous message.

Cheers

Richard
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