Once that’s done installing, plug in your camera via it’s USB port and check that it is visible to the system: I know I bought it early, but not that early.Sudo apt-get install gphoto2 libgphoto2-6 It displayed the serial number for my Canon 5d Mark iii as 5. They now want a $1.59 to read your camera and tell you the number of shutter actuations. It only works with Internet Explorer on a Windows Machine. installs an ActiveX control on your computer.This also didn’t work for my Canon 7d or Canon 5d Mark iii.

There is a more recent version of this program called EOSInfo from that is available for Windows only.

That didn’t work for my Canon 5d Mark iii or 7d.

I downloaded a Mac program called 40DShutterCount.

I started my search for software and websites that could read the shutter actuations off of the camera. Your Canon DSLR should have come with USB to mini USB cable to connect to your computer.

In order to get the shutter count on Canon DSLRs, the camera needs to be connected to your computer through the computer’s USB port.

Uploading an image file to websites such as also doesn’t work. The File Info selection in the File Menu in Photoshop has a lot of good information, but not the shutter actuations. So, using Show Inspector (Control I) in Mac preview does no good.

Unlike Nikon, Canon does not expose the number of shutter actuations in the camera EXIF data.

First, here are some of the truths that I found out So, did I really find out how to check the number of shutter actuations / counts on my Canon 7d and Canon 5d Mark iii? Did I do it on a Mac? Yep, I sure did. It is also important to know the number of shutter actuations when buying or selling a used DSLR. The Canon 7d and 5d Mark III are both rated for 150,000 actuations. Each camera is rated for a certain number of shutter actuations. Knowing the number of shutter actuations on your can be important. I searched dozens of message boards, read blogs, downloaded software, uploaded photos to websites, and played in the Mac terminal program. After spending ½ a day researching and trying to find the shutter actuations for my Canon 7d and Canon 5d Mark iii DSLRs, I decided to write a blog post about what I learned.

Canon 5d mark iii shutter count online