Neko

Here's a video review regarding the Evoguide practical uses for astrophotography, including the Skywatcher Evoguide dedicated Field Flattener. It seems it does a good job correcting the field, although is true that the back focus is very limited.. I was hoping to try it with my Qhy8-L but it is 20mm backfocus...so maybe not.

Amazing datasheet! so many details... thanks again for let us play with it! not sure if I do justice to it, but here it goes my first attempt ! Processed in StarTools 1.7 430, and Lightroom

Congratulations to the winners!! It was indeed a hard datasheet to process!! But was fun!! Looking forward to the next contest!!

Ok...so this is my second/last try I guess.. It is quite different than the previous one I wanted to get more of the Oiii outer "shell " of the crescent, and also the dark nebulas on the upper right corner. is in SHO and processed in StarTools 1.7.422 GPU version. Then slightly touched in windows "photo" editor... Loaded the three files first and saved it as a single Luminance file in Mono on compose module. Also loaded H-alpha and Oiii individually and stretched a bit. Then loaded that luminance in the Red channel, H-alpha in Green, and Oiii in Blue. then as follows... --- Compose Parameter [Luminance, Color] set to [L + Synthetic L From RGB, RGB] Parameter set to [On] Parameter [Lum Total Exposure] set to [Not set] Parameter [Blue Total Exposure] set to [2h52m (172m) (10320s)] Parameter [Green Total Exposure] set to [1h46m (106m) (6360s)] Parameter [Red Total Exposure] set to [2h47m (167m) (10020s)] Image size is 2750 x 2200 Type of Data: Linear, was not Bayered, or was Bayered + white balanced --- HDR Parameter [Small Detail Precision] set to [Max] Parameter [Channels] set to [Brightness Only] Parameter [Algorithm] set to [Reveal All] Parameter [Dark/Bright Response] set to [1.00] Parameter [Detail Size Range] set to [1000 pixels] Parameter [Strength] set to [1.3] --- Wavelet Sharpen Parameter [Structure Size] set to [Large] Mask used (BASE64 PNG encoded) --- SNR-aware Wavelet Sharpening 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 [4 pixels] Parameter [Amount] set to [300 %] Parameter [High SNR Size Bias] set to [85 %] Parameter [Low SNR Size Bias] set to [99 %] Parameter [Dark/Light Enhance] set to [50% / 50%] --- Deconvolution Parameter [Image Type] set to [Deep Space] Parameter [Secondary PSF] set to [Off (Primary Only)] Parameter [Primary PSF] set to [Moffat Beta=4.765 (Trujillo)] Parameter [Primary Radius] set to [1.5 pixels] Parameter [Iterations] set to [11] Parameter [Error Diffusion] set to [Off] Parameter [Mask Fuzz] set to [8.0 pixels] Parameter [Deringing] set to [50 %] Mask used (BASE64 PNG encoded) --- Shrink Parameter [Mode] set to [Tighten] Parameter [Halo Extend] set to [1 pixels] Parameter [Iterations] set to [15] Parameter [Regularization] set to [0.80] Parameter [De-ringing] set to [5 pixels] Parameter [UNKNOWN] set to [1.5 pixels] --- Crop Parameter [X1] set to [18 pixels] Parameter [Y1] set to [0 pixels] Parameter [X2] set to [2750 pixels (-0)] Parameter [Y2] set to [2200 pixels (-0)] Image size is 2732 x 2200 --- Color 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 [Matrix] set to [SHO 50SII+50Ha,50Ha+50OIII,100OIII] Parameter [Dark Saturation] set to [5.4] Parameter [Bright Saturation] set to [5.3] Parameter [Saturation Amount] set to [200 %] Parameter [Blue Bias Reduce] set to [2.29] Parameter [Green Bias Reduce] set to [1.16] Parameter [Red Bias Reduce] set to [5.68] Parameter [Mask Fuzz] set to [1.0 pixels] Parameter [Cap Green] set to [9 %] Parameter [Highlight Repair] set to [10 pixels] --- Life Parameter [Detail Preservation] set to [Linear Brightness Mask] Parameter [Compositing Algorithm] set to [Multiply, 2x Gamma Correct] 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 [3 %] Parameter [Detail Preservation Radius] set to [20.0 pixels] Parameter [Saturation] set to [75 %] Parameter [Strength] set to [27 %] Parameter [Mask Fuzz] set to [1.0 pixels] --- Entropy-driven Detail Enhancement Parameter [Resolution] set to [Medium] Parameter [Channel Selection] set to [Red (SHO SII,Vis.Ha)] Parameter [Strength] set to [65 %] Parameter [Midtone Pull Filter] set to [20.0 pixels] Parameter [Midtone Pull Strength] set to [50 %] Parameter [Dark/Light Enhance] set to [0% / 100%] File saved --- HDR Parameter [Small Detail Precision] set to [Max] Parameter [Channels] set to [Brightness Only] Parameter [Algorithm] set to [Reveal All] Parameter [Dark/Bright Response] set to [1.00] Parameter [Detail Size Range] set to [1000 pixels] Parameter [Strength] set to [1.3] Undo Image size is 2732 x 2200 Redo Image size is 2732 x 2200 Undo Image size is 2732 x 2200 Redo Image size is 2732 x 2200 --- Wavelet De-Noise Parameter [Grain Size] set to [4.1 pixels] Parameter [Walking Noise Size] set to [1.0 pixels] Parameter [Walking Noise Angle] set to [0] --- Wavelet De-Noise Parameter [Scale 1] set to [95 %] Parameter [Scale 2] set to [95 %] Parameter [Scale 3] set to [95 %] Parameter [Scale 4] set to [95 %] Parameter [Scale 5] set to [50 %] Parameter [UNKNOWN] set to [4 %] Parameter [Scale Correlation] set to [50 %] Parameter set to [50 %] Parameter [Uniform Grain Retention] set to [50 %] Parameter [Grain Dispersion] set to [1.9 pixels] File saved --- Develop Parameter [White Calibration] set to [Use Stars] Parameter [Gamma] set to [0.87] Parameter [Skyglow] set to [4 %] Parameter [Digital Development] set to [Off] Parameter [Blue Luminance Contrib.] set to [136 %] 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 [2.0 pixels] U --- Wavelet De-Noise Parameter [Grain Size] set to [2.0 pixels] Parameter [Walking Noise Size] set to [1.0 pixels] Parameter [Walking Noise Angle] set to [0]

First of all, thank you for the opportunity to play with such amazing data! Actually is the first time for me to copose an SHO I have an OSC so found this challenging and pretty complicated! Specially with my 10yo laptop! haha I might give a go again with different settings... StarTools 1.7.422alpha Mon Sep 28 15:28:51 2020 ----------------------------------------------------------- Loading luminance channel data File loaded in LRGB moduleLuminance mixed.tiff]. Loading red channel data File loaded in LRGB module Sii.fit]. Loading green channel data File loaded in LRGB moduleHa.fit]. Loading blue channel data File loaded in LRGB module [Oiii.fit]. --- Compose Parameter [Luminance, Color] set to [L, RGB] Parameter set to [On] Parameter [Lum Total Exposure] set to [2h25m (145m) (8700s)] Parameter [Blue Total Exposure] set to [1h00m (60m) (3600s)] Parameter [Green Total Exposure] set to [1h00m (60m) (3600s)] Parameter [Red Total Exposure] set to [1h00m (60m) (3600s)] Image size is 2750 x 2200 Type of Data: Linear, was not Bayered, or was Bayered + white balanced --- Auto Develop Parameter [Ignore Fine Detail <] set to [Off] Parameter [Outside RoI Influence] set to [15 %] Parameter [RoI X1] set to [0 pixels] Parameter [RoI Y1] set to [0 pixels] Parameter [RoI X2] set to [2750 pixels (-0)] Parameter [RoI Y2] set to [2200 pixels (-0)] Parameter [Detector Gamma] set to [1.00] Parameter [Shadow Linearity] set to [100 %] --- Crop Parameter [X1] set to [30 pixels] Parameter [Y1] set to [24 pixels] Parameter [X2] set to [2720 pixels (-30)] Parameter [Y2] set to [2176 pixels (-24)] Image size is 2690 x 2152 --- Wipe Parameter [Precision] set to [256 x 256 pixels] Parameter [Dark Anomaly Filter] set to [Off] Parameter [Drop Off Point] set to [0 %] Parameter [Corner Aggressiveness] set to [100 %] Parameter [Aggressiveness] set to [25 %] --- Auto Develop Parameter [Ignore Fine Detail <] set to [Off] Parameter [Outside RoI Influence] set to [100 %] Parameter [RoI X1] set to [900 pixels] Parameter [RoI Y1] set to [739 pixels] Parameter [RoI X2] set to [1757 pixels (-933)] Parameter [RoI Y2] set to [1731 pixels (-421)] Parameter [Detector Gamma] set to [1.28] Parameter [Shadow Linearity] set to [100 %] --- Bin Parameter [Scale] set to [(scale/noise reduction 50.00%)/(400.00%)/(+2.00 bits)] Image size is 1345 x 1076 --- HDR Parameter [Small Detail Precision] set to [Max] Parameter [Channels] set to [Brightness Only] Parameter [Algorithm] set to [Reveal DSO Core] Parameter [Dark/Bright Response] set to [Full] Parameter [Detail Size Range] set to [1000 pixels] Parameter [Strength] set to [1.3] --- Wavelet Sharpen Parameter [Structure Size] set to [Large] Mask used (BASE64 PNG encoded) --- Deconvolution Parameter [Image Type] set to [Deep Space] Parameter [Secondary PSF] set to [Off (Primary Only)] Parameter [Primary PSF] set to [Moffat Beta=4.765 (Trujillo)] Parameter [Primary Radius] set to [1.5 pixels] Parameter [Iterations] set to [11] Parameter [Error Diffusion] set to [Off] Parameter [Mask Fuzz] set to [8.0 pixels] Parameter [Deringing] set to [50 %] --- Color Parameter [Bias Slider Mode] set to [Sliders Reduce Color Bias] Parameter [Style] set to [Artistic, Not Detail Aware] Parameter [LRGB Method Emulation] set to [RGB Ratio, CIELab Luminance Retention] Parameter [Matrix] set to [SHO 20SII+80Ha,20Ha+80OIII,100OIII] Parameter [Dark Saturation] set to [2.0] Parameter [Bright Saturation] set to [Full] Parameter [Saturation Amount] set to [290 %] Parameter [Blue Bias Reduce] set to [1.00] Parameter [Green Bias Reduce] set to [2.62] Parameter [Red Bias Reduce] set to [1.40] Parameter [Mask Fuzz] set to [1.0 pixels] Parameter [Cap Green] set to [0 %] Parameter [Highlight Repair] set to [8 pixels] --- Entropy-driven Detail Enhancement Parameter [Resolution] set to [Medium] Parameter [Channel Selection] set to [Blue (Vis.Reflection,SHO OIII)] Parameter [Strength] set to [80 %] Parameter [Midtone Pull Filter] set to [20.0 pixels] Parameter [Midtone Pull Strength] set to [50 %] Parameter [Dark/Light Enhance] set to [0% / 100%] --- Filter Parameter [Filter Mode] set to [Saturate H-beta] Parameter [Sampling Method] set to [3x3 Average] Parameter [Filter Width] set to [5] Parameter [Mask Fuzz] set to [1.0 pixels] SAved the file and finished tweaking in Lightroom (noise reduction, sharpening and levels specially ) ^^