Saturday 5 December 2020

Changing the DSLR driver in Windows so that supported Canon and Nikon DSLRs will work in AstroDMx Capture for Windows

Note that AstroMx Capture for Windows can control Canon and Nikon DSLRs as long as the specific model is supported for USB tethering by the camera manufacturer.


If you try to use a DSLR without changing the Driver, This will be the result:

NB Bringing this article up to date for December 2021:

Note that since this article was originally written, the version of Zadig downloaded should now be 2.7 NOT 2.5 as described below

The driver (as described below) should now NOT be changed to libusb-win32 (v1.2.6.0); it should be changed to WinUSB (v6.1.7600.16385)

Click on the image to get a closer view


It is a simple matter to change the driver (quite reversibly) so that the DSLR will work with AstroDMx Capture for Windows.

You will need to download a Windows tool called Zadig in order to change the driver. 

Zadig can be downloaded from HERE.

Zadig will soon be downloadable from the Download site for AstroDMx Capture for Windows.

Installing Zadig

Double click on zadig-2.5.exe


Windows will ask 

Click on Yes

Then this dialogue will appear

Click on No

This dialogue will appear

Click on Options and List All Devices

Your camera should appear in the list and you should select it.


Make sure that libusb-win32 (v1.2.6.0) is selected in the drop down menu to the right of the green arrow

Click on Replace Driver


The Driver is then installed


Then Click on Close

Here is the Driver Installation SUCCESS dialogue. Click on the X to dismiss it

Do NOT click on Reinstall Driver

Now when you attempt to connect to your DSLR you will be able to, as long as the model is supported by the manufacturer for USB tethering.

Click on the image to get a closer view.


If for any reason in the future you wish to remove the  libusb-win32 (v1.2.6.0) driver that you have just installed, simply go to Device Manager and delete it there while the camera is connected.

AstroDMx Capture for Windows, macOS or Linux (Including Raspberry Pi) can be downloaded freely here: