Drop Frames ASI1600MMCool

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donboy
Posts: 98
Joined: Sat Mar 25, 2017 1:57 am

Drop Frames ASI1600MMCool

Post by donboy » Thu Oct 25, 2018 12:38 am

First few live stacks at 2min exposure and 300 gain I experience dropped frames after several stacks. I then uncheck the camera and recheck it and it usually works for the rest of the night . Sometimes it takes two repeated attempts of unchecking and rechecking the camera to eliminate dropped frames during live stack.

Don

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Re: Drop Frames ASI1600MMCool

Post by admin » Thu Oct 25, 2018 3:31 pm

Hi Don,

Please post your log file - they contain info about what the cause of the dropped frames was (there are several possible causes that all get lumped under dropped frames).

cheers,

Robin

donboy
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Re: Drop Frames ASI1600MMCool

Post by donboy » Fri Oct 26, 2018 12:01 am

Info: 19:58:49.0436392 Thread:LogInfo Thread#8 SharpCap.LogSystemInfo.ThreadProc() :: SharpCap Version 3.2.5840.0
Info: 19:58:49.0436392 Thread:LogInfo Thread#8 SharpCap.LogSystemInfo.ThreadProc() :: GC Memory 117Mb
Info: 19:58:49.0436392 Thread:LogInfo Thread#8 SharpCap.LogSystemInfo.ThreadProc() :: Process Memory 152Mb
Info: 19:58:49.0436392 Thread:LogInfo Thread#8 SharpCap.LogSystemInfo.ThreadProc() :: Total Physical Memory 10227Mb
Info: 19:58:49.0436392 Thread:LogInfo Thread#8 SharpCap.LogSystemInfo.ThreadProc() :: Available Physical Memory 6161Mb
Info: 19:58:49.0436392 Thread:LogInfo Thread#8 SharpCap.LogSystemInfo.ThreadProc() :: Operating System : Microsoft Windows NT 6.2.9200.0
Debug: 19:58:49.2780093 Thread:#1 SharpCap.UI.SharpCapForm..ctor() :: Started
Info: 19:58:49.5592549 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type BaslerDeviceEnumerator
Info: 19:58:49.5592549 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type QHYDeviceEnumerator
Info: 19:58:49.5592549 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type ASIDeviceEnumerator
Info: 19:58:49.5592549 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type AltairDeviceEnumerator
Info: 19:58:50.0565530 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type PointGreyDeviceEnumerator
Info: 19:58:50.0565530 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type SxDeviceEnumerator
Info: 19:58:50.0565530 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.Altair.dll
Info: 19:58:50.0721790 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.ASCOMCamera.dll
Info: 19:58:50.0721790 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.ASI.dll
Info: 19:58:50.0721790 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.Basler.dll
Info: 19:58:50.0721790 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.Celestron.dll
Info: 19:58:50.0878021 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.DS3.dll
Info: 19:58:50.0878021 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.Fake.dll
Info: 19:58:50.0878021 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.INova.dll
Info: 19:58:50.1190515 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.NewDirectShow.dll
Info: 19:58:50.1190515 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.PointGrey.dll
Info: 19:58:50.1190515 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.QHY.dll
Info: 19:58:50.1190515 Thread:#1 SharpCap.Base.InterfaceFactory`2.ScanDll(String filename) :: Probing for camera providers : C:\Program Files (x86)\SharpCap 3.2\SharpCap.Cameras.SX.dll
Info: 19:58:50.1190515 Thread:#1 SharpCap.MultiCaptureProvider.AddProvidersByReflection(String[] providerNames) :: Added device enumerator of type CelestronDeviceEnumerator
Info: 19:58:50.1190515 Thread:#1 SharpCap.MultiCaptureProvider.AddProvidersByReflection(String[] providerNames) :: Added device enumerator of type iNovaDeviceEnumerator
Info: 19:58:50.1190515 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type DS3DeviceEnumerator
Info: 19:58:50.1190515 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type AscomDeviceEnumerator
Info: 19:58:50.1190515 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type FolderMonitorDeviceEnumerator
Info: 19:58:50.1190515 Thread:#1 SharpCap.MultiCaptureProvider.AddProvider() :: Added device enumerator of type FakeDeviceEnumerator
Info: 19:58:50.3468434 Thread:LogInfo Thread#8 SharpCap.LogSystemInfo.ThreadProc() :: CPU : Intel(R) Xeon(R) CPU X5680 @ 3.33GHz with 12 cores.
Info: 19:58:50.8974710 Thread:#1 SharpCap.Base.Utilities.Logger.LogStackTrace(LogLevel level, String msg) :: Parent being changed on PreviewPanel
at SharpCap.UI.ScrollZoomForm.OnParentChanged(Object sender, EventArgs eventArgs)

Debug: 19:58:51.1728680 Thread:#1 SharpCap.UI.SharpCapForm..ctor() :: Ended
Debug: 19:58:51.3028086 Thread:#1 SharpCap.UI.SharpCapForm.SharpCapForm_Load(Object sender, EventArgs e) :: Started
Debug: 19:58:51.3048079 Thread:#1 SharpCap.UI.SharpCapForm.SharpCapForm_Load(Object sender, EventArgs e) :: Ended
Debug: 19:58:51.3248072 Thread:#1 SharpCap.UI.SharpCapForm.SharpCap_Shown(Object sender, EventArgs e) :: Started
Debug: 19:58:51.3538053 Thread:#1 SharpCap.UI.SharpCapForm.SharpCap_Shown(Object sender, EventArgs e) :: Timebomb checked
Debug: 19:58:51.3648048 Thread:#1 SharpCap.Cameras.Basler.BaslerDeviceEnumerator.GetDevices() :: Started
Info: 19:58:51.3768039 Thread:#1 SharpCap.SharpCapApp.get_ForceSoftwareRendering() :: WPF Rendering tier is 2
Debug: 19:58:51.4547992 Thread:#1 SharpCap.Cameras.Basler.BaslerDeviceEnumerator.GetDevices() :: Ended
Info: 19:58:51.7257833 Thread:#1 SharpCap.Base.SimpleDeviceEnumerator.GetDevices(Func`1 deviceNameFinder, String infoText, Func`2 fullNameToDispayName, Func`3 tagCreatorFunc) :: QHYCameraFinder - found 0 cameras
Info: 19:58:51.7697802 Thread:#1 SharpCap.Base.SimpleDeviceEnumerator.GetDevices(Func`1 deviceNameFinder, String infoText, Func`2 fullNameToDispayName, Func`3 tagCreatorFunc) :: FindCameras - found 0 cameras
Info: 19:58:52.0677631 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: QHY Camera (Native WDM) (DirectShow Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: CMOS QHY5LII Camera (ASCOM Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: ASI Camera (1) (ASCOM Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: ASI Camera (2) (ASCOM Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: Atik Camera (ASCOM Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: Atik Camera 2 (ASCOM Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: QHYCCD-Cameras-Guide (ASCOM Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: Camera V2 simulator (ASCOM Cameras)
Info: 19:58:52.0717624 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: Folder Monitor Camera (Virtual Cameras)
Debug: 19:58:52.0727623 Thread:#1 SharpCap.Cameras.Fake.FakeDeviceEnumerator.GetDevices() :: Started
Debug: 19:58:52.0727623 Thread:#1 SharpCap.Cameras.Fake.FakeDeviceEnumerator.GetDevices() :: Ended
Info: 19:58:52.0727623 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: Test Camera 1 (Deep Sky) (Test Cameras)
Info: 19:58:52.0727623 Thread:#1 SharpCap.MultiCaptureProvider+<GetDevicesFromEnumerator>d__20.MoveNext() :: Detected Camera: Test Camera 2 (High Speed) (Test Cameras)
Debug: 19:58:52.1877559 Thread:#1 SharpCap.UI.SharpCapForm.SharpCap_Shown(Object sender, EventArgs e) :: Docking setup
Debug: 19:58:52.1887568 Thread:#1 SharpCap.UI.SharpCapForm.SharpCap_Shown(Object sender, EventArgs e) :: Startup scripts (if any) run
Debug: 19:58:52.1887568 Thread:#1 SharpCap.UI.SharpCapForm.SharpCap_Shown(Object sender, EventArgs e) :: Menu updated
Debug: 19:58:52.2627515 Thread:#1 SharpCap.UI.SharpCapForm.SharpCap_Shown(Object sender, EventArgs e) :: Splash and tips done
Debug: 19:58:52.3017482 Thread:#1 SharpCap.UI.SharpCapForm.SharpCap_Shown(Object sender, EventArgs e) :: Ended

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Re: Drop Frames ASI1600MMCool

Post by admin » Fri Oct 26, 2018 10:53 am

Hi Don,

sadly nothing about dropped frames in that log - it looks as though it is just a log of SharpCap starting up.

You will need to grab a log from SharpCap after you have been imaging and have seen dropped frames - in the log you will find lines with text like

Code: Select all

{lots of junk}: Dropped Frames : 17 of type [some type]
It's finding out what type of dropped frame is giving the most problem that will help narrow down the cause.

cheers,

Robin

donboy
Posts: 98
Joined: Sat Mar 25, 2017 1:57 am

Re: Drop Frames ASI1600MMCool

Post by donboy » Tue Oct 30, 2018 2:24 am

ASI1600MM~MONO16.json
Debug: 21:16:06.0806908 Thread:#1 SharpCap.UI.SharpCapForm.CommandToolStripItem_Click(Object sender, EventArgs e) :: Button Pressed &Live Stack
Info: 21:16:06.0806908 Thread:#1 SharpCap.Models.Transforms.set_SelectedTransform(Transform value) :: Selecting transform Live Stacking
Info: 21:16:06.0836907 Thread:#1 SharpCap.FrameTransforms.LiveStacking.LiveStackViewModel.SendToMainLogger(LoggingEvent loggingEvent) :: Live stacking activated
Info: 21:18:58.4173944 Thread:#1 SharpCap.FrameTransforms.LiveStacking.LiveStackViewModel.SendToMainLogger(LoggingEvent loggingEvent) :: Clearing stack
Info: 21:19:06.1109350 Thread:Image Process Thread#30 SharpCap.Base.FileWriters.FileWriterBase.Initialize(IFileNameProvider fnp, ColourSpaceId colourSpaceId, Int32 width, Int32 height, Int32 bytesPerPixelElement, Int32 significantBitDepth, Int32 colourPlanes, String DeviceName) :: Initializing FitsFileWriter at 4656x3520x1x16bits, Mono, 2 bytes per PEL for ZWO ASI1600MM-Cool
Debug: 21:19:06.1429328 Thread:Image Process Thread#30 SharpCap.Base.FileWriters.TemplatedFilenameProvider.GetFilename(FrameInfo frameInfo, Boolean createDir) :: Creating directory C:\Users\Don\Desktop\SharpCap Captures\2018-10-29\IC1805Ha\21_18_58\rawframes for capture files
Info: 21:20:03.7634909 Thread:#1 SharpCap.FrameTransforms.LiveStacking.LiveStackViewModel.SendToMainLogger(LoggingEvent loggingEvent) :: Clearing stack
Info: 21:20:08.9981773 Thread:Image Process Thread#30 SharpCap.Base.FileWriters.FileWriterBase.Initialize(IFileNameProvider fnp, ColourSpaceId colourSpaceId, Int32 width, Int32 height, Int32 bytesPerPixelElement, Int32 significantBitDepth, Int32 colourPlanes, String DeviceName) :: Initializing FitsFileWriter at 4656x3520x1x16bits, Mono, 2 bytes per PEL for ZWO ASI1600MM-Cool
Debug: 21:20:09.0311751 Thread:Image Process Thread#30 SharpCap.Base.FileWriters.TemplatedFilenameProvider.GetFilename(FrameInfo frameInfo, Boolean createDir) :: Creating directory C:\Users\Don\Desktop\SharpCap Captures\2018-10-29\IC1805Ha\21_20_03\rawframes for capture files
Debug: 21:20:50.1967151 Thread:#1 SharpCap.UI.SharpCapForm.CommandToolStripItem_Click(Object sender, EventArgs e) :: Button Pressed Show The Image Histogram
Info: 21:20:50.1967151 Thread:#1 SharpCap.Models.Transforms.set_SelectedTransform(Transform value) :: Selecting transform Histogram
Info: 21:20:50.2457128 Thread:#1 SharpCap.FrameTransforms.LiveStacking.LiveStackViewModel.SendToMainLogger(LoggingEvent loggingEvent) :: Live stacking deactivated
Info: 21:20:50.2467125 Thread:#1 SharpCap.CameraAnalysis.SensorLibrary.LoadImpl(Object normalizeCameraName, String colourSpace) :: Loading library sensor characteristics from C:\Program Files (x86)\SharpCap 3.2\SensorLibrary\ZWO ASI1600MM~MONO16.json
Debug: 21:22:24.2970924 Thread:#1 SharpCap.UI.SharpCapForm.CommandToolStripItem_Click(Object sender, EventArgs e) :: Button Pressed &Live Stack
Info: 21:22:24.2970924 Thread:#1 SharpCap.Models.Transforms.set_SelectedTransform(Transform value) :: Selecting transform Live Stacking
Info: 21:22:24.3690890 Thread:#1 SharpCap.FrameTransforms.LiveStacking.LiveStackViewModel.SendToMainLogger(LoggingEvent loggingEvent) :: Live stacking activated
Info: 21:23:04.7736745 Thread:#1 SharpCap.FrameTransforms.LiveStacking.LiveStackViewModel.SendToMainLogger(LoggingEvent loggingEvent) :: Clearing stack
Warning: 21:25:23.3733606 Thread:ASI Grab Thread#29 SharpCap.Cameras.ASI.ASICameraProxy.GetFrameData(Int32 timeout, BufferFrame frame) :: Fetching still frame from ZWO camera failed with ExpFailed, exposure is 180000, timeout is 204000
Warning: 21:26:23.7147558 Thread:ASI Grab Thread#29 SharpCap.Cameras.ASI.ASICameraProxy.GetFrameData(Int32 timeout, BufferFrame frame) :: Fetching still frame from ZWO camera failed with ExpFailed, exposure is 180000, timeout is 204000
Warning: 21:26:54.1419417 Thread:ASI Grab Thread#29 SharpCap.Cameras.ASI.ASICameraProxy.GetFrameData(Int32 timeout, BufferFrame frame) :: Fetching still frame from ZWO camera failed with ExpFailed, exposure is 30000, timeout is 46500
Warning: 21:27:24.5691199 Thread:ASI Grab Thread#29 SharpCap.Cameras.ASI.ASICameraProxy.GetFrameData(Int32 timeout, BufferFrame frame) :: Fetching still frame from ZWO camera failed with ExpFailed, exposure is 30000, timeout is 46500
Info: 21:27:38.3442959 Thread:#1 SharpCap.Models.Application+<>c__DisplayClass39_0.<set_SelectedCamera>b__0() :: Changing camera from ZWO ASI1600MM-Cool to none
Info: 21:27:38.3642952 Thread:#1 SharpCap.MultiCaptureProvider.CloseDevice() :: Stopping preview to close device
Info: 21:27:38.3782946 Thread:#1 SharpCap.Base.CaptureProviderBase`1.StopPreview() :: Started
Debug: 21:27:38.3882934 Thread:#1 SharpCap.Base.BaseImageProvider.Stop() :: Started
Warning: 21:27:39.7892101 Thread:ASI Grab Thread#29 SharpCap.Cameras.ASI.ASICameraProxy.GetFrameData(Int32 timeout, BufferFrame frame) :: Fetching still frame from ZWO camera failed with ExpFailed, exposure is 30000, timeout is 46500
Debug: 21:27:39.7902107 Thread:ASI Grab Thread#29 SharpCap.Cameras.ASI.ASICameraProxy.MyGrabThreadProc() :: Ended
Debug: 21:27:39.8062085 Thread:#1 SharpCap.Base.CameraProxyBase.StopPreview() :: Started
Debug: 21:27:39.8182079 Thread:Grab Thread#28 SharpCap.Base.CameraProxyBase.GrabThreadProc() :: Ended
Debug: 21:27:39.8182079 Thread:#1 SharpCap.Base.CameraProxyBase.StopPreview() :: Ended
Debug: 21:27:39.9002031 Thread:#1 SharpCap.Base.BaseImageProvider.Stop() :: Ended
Info: 21:27:39.9122028 Thread:#1 SharpCap.MultiCaptureProvider.SendCaptureEvent(Object sender, CaptureEventArgs e) :: Capture Event : StopPreview
Info: 21:27:39.9372017 Thread:#1 SharpCap.Base.Memory.MappedBufferFactory+MemoryManager.DropStashedFrames() :: Drop stashed frames reclaimed 229457920 bytes of memory.
Info: 21:27:39.9492002 Thread:#1 SharpCap.ViewModels.SharpCapViewModel.appModel_OnCaptureEvent(Object sender, CaptureEventArgs e) :: StopPreview event received in UI thread
Info: 21:27:40.1261903 Thread:#1 SharpCap.Base.CaptureProviderBase`1.StopPreview() :: Ended
Info: 21:27:40.1381894 Thread:#1 SharpCap.Base.CaptureProviderBase`1.CloseDevice() :: Started
Debug: 21:27:40.1501882 Thread:#1 SharpCap.Base.CaptureProviderBase`1.CloseTheImageProvider() :: Started
Debug: 21:27:40.1621874 Thread:#1 SharpCap.Base.BaseImageProvider.Close() :: Started
Info: 21:27:40.1741865 Thread:#1 SharpCap.Cameras.ASI.ASICameraProxy.Dispose(Boolean disposing) :: Closing ZWO Camera due to Dispose of Proxy
Info: 21:27:40.2141850 Thread:#1 SharpCap.Base.CameraProxyBase.Dispose(Boolean disposing) :: Started
Debug: 21:27:40.2261835 Thread:#1 SharpCap.Base.BaseImageProvider.Close() :: Ended
Debug: 21:27:40.2371836 Thread:#1 SharpCap.Base.CaptureProviderBase`1.CloseTheImageProvider() :: Ended
Debug: 21:27:40.2511821 Thread:#1 SharpCap.Base.SimpleCaptureProvider.OnDeviceClosed() :: Started
Debug: 21:27:40.2621815 Thread:#1 SharpCap.Base.SimpleCaptureProvider.OnDeviceClosed() :: Ended
Info: 21:27:40.2741807 Thread:#1 SharpCap.Base.CaptureProviderBase`1.CloseDevice() :: Ended
Info: 21:27:40.2861801 Thread:#1 SharpCap.MultiCaptureProvider.SendCaptureEvent(Object sender, CaptureEventArgs e) :: Capture Event : DeviceClosed
Info: 21:27:40.2981792 Thread:#1 SharpCap.ViewModels.SharpCapViewModel.appModel_OnCaptureEvent(Object sender, CaptureEventArgs e) :: DeviceClosed event received in UI thread
Info: 21:27:40.3281780 Thread:#1 SharpCap.FrameTransforms.LiveStacking.LiveStackViewModel.SendToMainLogger(LoggingEvent loggingEvent) :: Clearing stack
Info: 21:27:40.3451770 Thread:#1 SharpCap.Base.CaptureProviderBase`1.Dispose(Boolean bDisposing) :: Started
Error: 21:27:40.3581758 Thread:#1 SharpCap.Base.CaptureProviderBase`1.Dispose(Boolean bDisposing) :: Disposing of ASICaptureProvider
Debug: 21:27:40.3741745 Thread:#1 SharpCap.Base.BaseImageProvider.Dispose(Boolean disposing) :: Started
Debug: 21:27:40.3861743 Thread:#1 SharpCap.Base.BaseImageProvider.Dispose(Boolean disposing) :: Ended
Info: 21:27:40.3991731 Thread:#1 SharpCap.Base.CaptureProviderBase`1.Dispose(Boolean bDisposing) :: Ended
Info: 21:27:42.9160232 Thread:#1 SharpCap.Models.Application+<>c__DisplayClass39_0.<set_SelectedCamera>b__0() :: Changing camera from none to ZWO ASI1600MM-Cool
Info: 21:27:42.9920182 Thread:#1 SharpCap.ViewModels.SharpCapViewModel.appModel_OnCaptureEvent(Object sender, CaptureEventArgs e) :: OpeningDevice event received in UI thread
Debug: 21:27:43.0040179 Thread:#1 SharpCap.MultiCaptureProvider.OpenDevice(DeviceTagData deviceTag) :: Opening device : ZWO ASI1600MM-Cool (via ZWO ASI Cameras)
Info: 21:27:43.0160171 Thread:#1 SharpCap.Base.CaptureProviderBase`1.OpenDevice(DeviceTagData dtd) :: Started
Debug: 21:27:43.0280159 Thread:#1 SharpCap.Base.SimpleCaptureProvider.SetupDevice(DeviceTagData dtd) :: Started
Debug: 21:27:43.7879720 Thread:#1 SharpCap.Base.SimpleCaptureProvider.SetupDevice(DeviceTagData dtd) :: Ended

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Re: Drop Frames ASI1600MMCool

Post by admin » Tue Oct 30, 2018 6:19 pm

Hi,

what I can see from that log is that the camera is failing to take the longer exposures - lines like

Code: Select all

Fetching still frame from ZWO camera failed with ExpFailed, exposure is 30000, timeout is 46500
That shows that a 30 second exposure failed and that the cause of the failure was somewhere in the ZWO SDK which is giving the ExpFailed error. I don't think there is anything from a SharpCap point of view that I can do to stop this from happening, but it may be worth you checking that your USB cables are as short as possible and that your Turbo USB setting is low - both of these help stability.

cheers,

Robin

wcblack7
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Re: Drop Frames ASI1600MMCool

Post by wcblack7 » Mon Nov 05, 2018 1:44 am

Hi Don,
Not sure if this will help, but I was having a lot of dropped frames (20%) in just the preview (not even stacking).
I'm running under Windows 10 and it turns out that the OS will suspend the USB hubs to save power. This was causing me to have various issues, including the large number of dropped frames.

Dave sent me the following link on it: https://www.windowscentral.com/how-prev ... sb-devices

Disabling this feature seems to have solved the odd problems I was having as well as vastly improving my dropped frame rate.
Hope you solve it!
Bill

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Re: Drop Frames ASI1600MMCool

Post by saguaro » Tue Nov 06, 2018 4:17 pm

I also experienced dropped frames with my ASI1600MC-C on my Win 10 64-bit laptop, using the 64-bit beta version 3.2.5847.

From the log: "Fetching still frame from ZWO camera failed with ExpFailed, exposure is 1000, timeout is 6100"

This is with all USB power saving options disabled and Turbo USB setting is 40.

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Re: Drop Frames ASI1600MMCool

Post by admin » Wed Nov 07, 2018 4:33 pm

Hi,
That error code comes from the z w o SDK not from sharpcap. It's difficult to be sure what the causes but it's often a USB communication failure. Sounds like you've done all the right things to try and minimise this problem. We have to just keep an eye on this for now.

Cheers, Robin

wcblack7
Posts: 21
Joined: Fri Nov 02, 2018 6:05 am

Re: Drop Frames ASI1600MMCool

Post by wcblack7 » Wed Nov 07, 2018 4:59 pm

I found that an overloaded usb hub was also causing me some issues.

Can you download and run USBtreeView https://www.uwe-sieber.de/usbtreeview_e.html and post back an image of the graphical USB representation on the left hand side?

That might tell us if there is something you might try disconnecting from your usb to get better results.

Bill

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