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M33 - Triangulum Galaxy

Posted: Mon Aug 17, 2015 9:00 pm
by LanFeusT
This still is far from good, but with only 2.4h of integration and no cooled DSLR (it was 70F/21C at the coldest of the night...) I don't think I can get much better.
This was my first time using my off-axis guider vs my guidescope.

Image



Here was my workflow, I did use PS just at the end to tweak the levels just a tad. Let me know if you think I should change something!

Workflow:
--- Bin
Parameter [Scale] set to [(scale/noise reduction 35.38%)/(798.89%)/(+3.00 bits)]

--- Develop
Parameter [White Calibration] set to [Use Stars]
Parameter [Gamma] set to [1.00]
Parameter [Skyglow] set to [0 %]
Parameter [Digital Development] set to [52.19 %]
Parameter [Blue Luminance Contrib.] set to [100 %]
Parameter [Green Luminance Contrib.] set to [100 %]
Parameter [Red Luminance Contrib.] set to [100 %]
Parameter [Dark Anomaly Headroom] set to [5 %]
Parameter [Dark Anomaly Filter] set to [7.3 pixels]

--- Crop
Parameter [X1] set to [145 pixels]
Parameter [Y1] set to [127 pixels]
Parameter [X2] set to [1720 pixels (-120)]
Parameter [Y2] set to [1123 pixels (-102)]

--- Wipe
Parameter [Mode] set to [Correct Color & Brightness]
Parameter [UNKNOWN] set to [No]
Parameter [Precision] set to [128 x 128 pixels]
Parameter [Dark Anomaly Filter] set to [4 pixels]
Parameter [Drop Off Point] set to [100 %]
Parameter [Corner Aggressiveness] set to [100 %]
Parameter [Aggressiveness] set to [75 %]
--- Develop
Parameter [White Calibration] set to [Use Stars]
Parameter [Gamma] set to [1.00]
Parameter [Skyglow] set to [0 %]
Parameter [Digital Development] set to [60.78 %]
Parameter [Blue Luminance Contrib.] set to [100 %]
Parameter [Green Luminance Contrib.] set to [100 %]
Parameter [Red Luminance Contrib.] set to [100 %]
Parameter [Dark Anomaly Headroom] set to [5 %]
Parameter [Dark Anomaly Filter] set to [17.4 pixels]

--- Band
Parameter [Algorithm] set to [Algorithm 1]
Parameter [Orientation] set to [Horizontal]

--- HDR
Parameter [Small Detail Precision] set to [Max]
Parameter [Channels] set to [Brightness Only]
Parameter [Algorithm] set to [Optimize Hard]
Parameter [Dark/Bright Response] set to [Full]
Parameter [Detail Size Range] set to [21 pixels]
Parameter [Noise Suppression] set to [Off]

--- Wavelet Sharpen
Parameter [Intelligent Enhance] set to [Yes]
Parameter [Scale 1] set to [100 %]
Parameter [Scale 2] set to [100 %]
Parameter [Scale 3] set to [100 %]
Parameter [Scale 4] set to [100 %]
Parameter [Scale 5] set to [100 %]
Parameter [Mask Fuzz] set to [8.0 pixels]
Parameter [Amount] set to [479 %]
Parameter [Small Detail Bias] set to [75 %]

--- Life
Parameter [Detail Preservation] set to [Min Distance to 1/2 Unity]
Parameter [Compositing Algorithm] set to [Power of Inverse]
Parameter [Inherit Brightness, Color] set to [Off]
Parameter [Output Glow Only] set to [No]
Parameter [Airy Disk Sampling] set to [128 x 128 pixels]
Parameter [Airy Disk Radius] set to [8 pixels]
Parameter [Glow Threshold] set to [12 %]
Parameter [Detail Preservation Radius] set to [20.0 pixels]
Parameter [Saturation] set to [50 %]
Parameter [Strength] set to [100 %]
Parameter [Mask Fuzz] set to [1.0 pixels]

--- Color
Parameter [Cap Green] set to [No]
Parameter [Bias Slider Mode] set to [Sliders Reduce Color Bias]
Parameter [Style] set to [Scientific (Color Constancy)]
Parameter [LRGB Method Emulation] set to [Straight CIELab Luminance Retention]
Parameter [Dark Saturation] set to [1.90]
Parameter [Bright Saturation] set to [Full]
Parameter [Saturation Amount] set to [211 %]
Parameter [Blue Bias Reduce] set to [1.00]
Parameter [Green Bias Reduce] set to [1.38]
Parameter [Red Bias Reduce] set to [1.46]
Parameter [Mask Fuzz] set to [1.0 pixels]

--- Wavelet De-Noise
Parameter [Scale 1] set to [90 %]
Parameter [Scale 2] set to [90 %]
Parameter [Scale 3] set to [90 %]
Parameter [Scale 4] set to [90 %]
Parameter [Scale 5] set to [0 %]
Parameter [Mask Fuzz] set to [1.0 pixels]
Parameter [Scale Correlation] set to [6]
Parameter [Color Detail Loss] set to [12 %]
Parameter [Brightness Detail Loss] set to [12 %]
Parameter [Grain Size] set to [8.1 pixels]
Parameter [Read Noise Compensation] set to [Off]
Parameter [Smoothness] set to [75 %]

Re: M33 - Triangulum Galaxy

Posted: Tue Aug 18, 2015 7:04 pm
by LanFeusT
I need a new monitor... I just realized how purple the image looks. My home monitor showed it much more blue than purple -_-

Re: M33 - Triangulum Galaxy

Posted: Mon Aug 24, 2015 12:15 am
by admin
You got decent detail (M33 is pretty faint!), though I'm puzzled by the purple. What did you use to stack? Got some more acquisition details for us?

Re: M33 - Triangulum Galaxy

Posted: Mon Aug 31, 2015 6:32 pm
by LanFeusT
admin wrote:You got decent detail (M33 is pretty faint!), though I'm puzzled by the purple. What did you use to stack? Got some more acquisition details for us?

Hi,

This was taken with a non modified Canon 60D.
18 x 8 minutes plus some darks and bias, no flats.

Although I've always had a bit of trouble getting proper colors out, the problem in this case I believe is because of my monitor which was not calibrated.

I have two monitors at home, my main one seems totally off which i think is what caused the color shift. I will be reprocessing it this week to try and fix the color.