My Macbook Pro will not recognize my Canon Rebel T3i when I plug it in. Please help!

[aprince1982]

I've installed the necessary software from Canon, but no luck. Any suggestions?

[Roscomcc]

thats what I was thinking last night! though I've tried three different cables lying around the house

[DiabloTheOtaku]

My canon rebel t7 won’t pop up anywhere on my Mac I’m using Mac OS Catalina 10.15.4 and the HDMI cable is fine but still nothing

[jrhoffman75]

I'm not sure you can connect to a computer via HDMI. Have you tried with USB?

[DiabloTheOtaku]

Yes I’ve tried with both the usb let’s me connect to image capture but that’s about it I can’t import anything and can’t connect to eos utility 3 always says failed to communicate with camera check connections

[jrhoffman75]

If you are connected to Image Capture you should be able to import images. I do that all the time. I don’t use EOSU.

There may be some permissions you have to enable to use EOSU.

[nickq83]

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@TCampbell wrote:

It’s easy to mistake the USB cable and use a cable that wont work (and this is probably the most likely cause).

Make sure you aren’t using a USB “charging” cable.  A number of devices now use USB cables simply to charge a device and include cables that only have the power pins wired ... the data pins aren’t actually wired.  If you use such a cable, the computer wont see the camera.   The cable needs to have the data pins wired.

Some cameras that support WiFi wont show up if the camera is in WiFi mode ... but the T3i doesn’t support WiFi transfers so that wont apply to your camera.

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This was exactly it. I tried 3 different cables and nothing worked until I unplugged the one from my wacom tablet and now it's working perfectly. Thank you! 

[danaillie]

I just went through the steps to determine if my Mac is recognizing my camera.  It is not showing up in the USB section of the Utility Window.  Can you help me understand why my computer is not recognizing my camera?  This is strange becasue this is not the first time that I am connecting the camera to this computer.  For some reason it just stopped working.  Can you help?

[kvbarkley]

Try running image capture from the Applications Folder

[danaillie]

@kvbarkley I am not sure what you are asking me to do. I noticed that although I could not see my camera in the USB section it is showing up when I go into the iPhoto window, but I can’t see any pictures that are stored on the camera.

[kvbarkley]

I am telling you to go into applications and run the program that actually talks to the camera: Image Capture. Sometimes it is misconfigured.