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Re: Dobson / ROI stabilization
Posted: Sun Mar 06, 2022 1:21 pm
by admin
Hi,
to get the number of frames that the camera has processed since being opened, use
Code: Select all
print SharpCap.SelectedCamera.CapturedFrameCount
Note that this is not the number saved to file - it's the number that have come from the camera to the application.
Is that enough to do what you want?
cheers,
Robin
Re: Dobson / ROI stabilization
Posted: Mon Mar 07, 2022 8:16 am
by aquariusCZ
Hi,
thanks a lot, that will be enough.
Tomas
Re: Dobson / ROI stabilization
Posted: Tue Mar 08, 2022 8:42 pm
by aquariusCZ
Hi,
I advanced with a script that shifts the ROI after saving npic images by npan pixels.
This algorithm makes it much easier to set the ROI offset speed.
The speed can be changed not only with npic and npan, but also gently with exposure and turbo USB.
The moon is the week of evening shooting.
Happy hunting, dobsonists.
Code: Select all
import time
import clr
start = 0
end = 1024
npic = 1 #pictures
npan = 1 #pan inc
pan = start
SharpCap.SelectedCamera.PrepareToCapture ()
SharpCap.SelectedCamera.RunCapture ()
SharpCap.SelectedCamera.Controls.Pan.Value = start
pic = SharpCap.SelectedCamera.CapturedFrameCount
picc = pic + npic
while pan <end:
while pic <=picc:
pic = SharpCap.SelectedCamera.CapturedFrameCount
pan = pan + npan
SharpCap.SelectedCamera.Controls.Pan.Value = pan
picc = pic + npic
SharpCap.SelectedCamera.StopCapture ()
SharpCap.SelectedCamera.Controls.Pan.Value = start
Re: Dobson / ROI stabilization
Posted: Wed Mar 09, 2022 5:56 pm
by aquariusCZ
Hi,
today I did the first sharp test of the script.
I used Prokyon (alt 40 °).
The moon is out of sight. Observation deck - balcony.
The script stopped the movement of the star very well and allowed to take 2000 images.
I easily adjusted the speed of the ROI by the length of the exposure.
I am satisfied.

- Prokyon_test.jpg (346.46 KiB) Viewed 4409 times
Dobson 305/1500, Barlow 2x, ASI482MC, UVIRcut.
Tomas
Re: Dobson / ROI stabilization
Posted: Sat Mar 12, 2022 7:29 am
by aquariusCZ
11.3.2022 21:10 (+1 UTC)

- T21_10_43_ZWO ASI482MC_CaptureBWu.jpg (339.41 KiB) Viewed 4377 times
Clavius
Dobson 254/1200, Barlow 3x +extension 40mm, UVIRCut, ASI482MC,
ROI 970x1080, 1775 frames,
ROI stabilization script, 82 fps, AS3 + R6 + PaintNet.
Seeing better average.
Frýdlant nad Ostravicí.
Re: Dobson / ROI stabilization
Posted: Sun Mar 13, 2022 2:53 pm
by aquariusCZ
12.3.2022 20:31 (+1UTC)

- T20_31_40_ZWO ASI482MC_Capture_ImTracOffNoRGB_RGBuu.jpg (389.44 KiB) Viewed 4345 times
Moon in colors
Dobson 254/1200, Barlow 3x +extension 40mm, UVIRCut, ASI482MC,
ROI 970x1080, 1610 frames,
three layers intertwined: color + BW + contour,
ROI stabilization script, 82 fps, AS3 + R6 + PaintNet.
Seeing - average.
Frýdlant nad Ostravicí.
Thanks to the script, every dobson becomes a planetary special.

Re: Dobson / ROI stabilization
Posted: Sat Mar 19, 2022 8:04 pm
by aquariusCZ
19.3.2022 22:25 (+1 UTC)

- T22_25_04_ZWO ASI482MC_CaptureBWu.jpg (409.7 KiB) Viewed 4277 times
Tycho
Dobson 254/1200, Barlow 3x +extension 40mm, UVIRCut, ASI482MC,
ROI 896x892, 1670 frames,
three layers intertwined: color + BW + contour,
ROI stabilization script, 82 fps, AS3 + R6 + PaintNet.
Seeing - average.
Frýdlant nad Ostravicí.