Error Focussing Nikon D850

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mcurry5
Posts: 1
Joined: Wed Feb 12, 2020 3:56 am

Error Focussing Nikon D850

Post by mcurry5 » Wed Feb 12, 2020 4:05 am

I am taking photos on a turntable in LiveView using a USB cable and a Nikon D850. I am manually triggering the turntable, clicking to focus and then manually clicking "Capture" (AF before Capture is on).

After about 5-10 shots, I get an error when I am trying to focus: "Unable to set focus area" or "MTP Device Busy". After this, the focus will not work correctly and I'll keep getting the same error until I turn off the camera, unplug the USB cable and reconnect everything. During this time, photos will transfer and I can perform other functions, such as taking a photo or changing settings.

The error log is showing:

Code: Select all

2020-02-12 11:54:36,791 [134]ERROR DCC [(null)] - Unable to auto focus
CameraControl.Devices.Classes.DeviceException: Device MTP error: Device is busy
   at CameraControl.Devices.Classes.ErrorCodes.GetException(UInt32 code) in D:\devel\vs2010\CameraControl\CameraControl.Devices\Classes\ErrorCodes.cs:line 96
   at CameraControl.Devices.Nikon.NikonBase.AutoFocus() in D:\devel\vs2010\CameraControl\CameraControl.Devices\Nikon\NikonBase.cs:line 1858
   at CameraControl.ViewModel.LiveViewViewModel.AutoFocusThread() in D:\devel\vs2010\CameraControl\CameraControl\ViewModel\LiveViewViewModel.cs:line 1913
or

Code: Select all

2020-02-12 11:54:21,430 [115]ERROR DCC [(null)] - Error set focus pos :
CameraControl.Devices.Classes.DeviceException: MTP device busy
   at CameraControl.Devices.Classes.ErrorCodes.GetException(UInt32 code) in D:\devel\vs2010\CameraControl\CameraControl.Devices\Classes\ErrorCodes.cs:line 124
   at CameraControl.Devices.Nikon.NikonBase.Focus(Int32 x, Int32 y) in D:\devel\vs2010\CameraControl\CameraControl.Devices\Nikon\NikonBase.cs:line 1948
   at CameraControl.ViewModel.LiveViewViewModel.SetFocusPos(Int32 x, Int32 y) in D:\devel\vs2010\CameraControl\CameraControl\ViewModel\LiveViewViewModel.cs:line 2978

Error Focussing Nikon D850

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