Frequently Asked Questions

ShutterCheck doesn’t recognize my camera
Please follow these steps in order to fix the issue:
  • Make sure your camera is supported. The full list of supported cameras is available on ShutterCheck’s specs page.
  • Make sure that Wi-Fi is disabled if you have a Wi-Fi capable camera (such as EOS 6D and 70D). Active Wi-Fi interface completely disables camera’s USB communication abilities.
  • Make sure that no other application on your Mac is trying to access the camera at the same time. Look for Image Capture, Aperture, Lightroom, EOS Utility and so on. Simultaneous access has unpredictable behaviour — both applications may not work properly.
  • Relaunch the ShutterCheck, reboot your camera and try again.
How do I know that displayed shutter count is correct?

We’ve spend many months reverse engineering Canon EOS cameras and identified shutter count retrieval method on model to model basis. That is, each camera model has something unique in this process. We’ve also tested the app with every possible EOS camera and always got correct results.

You can make sure the supplied information is valid by simply making a shot and then getting another shutter count reading. Note that camera has to be rebooted in order to get an updated shutter count value. Shutter count will increase by one if you made a shot via viewfinder or even more if you made a Live View shot.

When I plug my camera the app displays “This camera is not supported. App functionality may be limited” bar
Unsupported camera message

This happens when you connect a Canon EOS camera that is not yet known to ShutterCheck. Most probably you have a recently-released camera model that is not yet supported by the app. Overview and User information panes should be available, but no shutter information will be provided. We tend to update ShutterCheck as fast as we can get our hands on a new models, so please make sure you run the latest version.

After I use ShutterCheck my camera doesn’t turn off automatically

This is a known issue that happens on some selected EOS models. To re-enable the auto-off feature please turn you camera off and remove the battery. After you put it back auto-off should work as usual.

What does “Possible shots” value stands for?

Possible shots value that is displayed on the first ‘Overview’ information pane stands for a number of shots that you can take with your current image quality preferences (RAW/JPG + compression) until camera runs out of its storage (CF or SD). Do not confuse this with shutter count!

How do I customise camera owner, author and copyright fields?

These fields are available for customization on a third ‘User’ information pane. Due to Canon EOS firmware restrictions, you can use only ASCII characters. For your convenience, if you try to enter a non-latin text ShutterCheck will automatically turn it into transliteration.

Are there any hidden costs?

No, there are no hidden costs! Unlike some of the alternative apps that charge a fee per shutter actuations reading, ShutterCheck is completely unrestricted after you buy it. We also don’t offer in-app purchases: all features, including shutter usage detalization are available with no strings attached. No annoying ads, no subscriptions, no malware. You get a native Mac app from a well-known developer with years of experience.

Do you have any plans on releasing ShutterCheck for Windows?

This probably won't happen anytime soon, sorry! Our resources are limited and we have to focus on what's most important. If you think that ShutterCheck for Windows could be useful to you please consider writing a short message so we can estimate the demand.

Have a question that’s not covered here?

Feel free to contact the support at!

If you’re experiencing a problem with the app please provide us the following details:

  • what camera model do you have
  • what version of ShutterCheck are you running
  • what error is being displayed (screenshot is 👍🏻)
  • what are the other circumstances are
  • what steps should be taken to reproduce the issue

We deal with a multitude of software & hardware configurations, so including as many details as possible is crucial for successful resolution of your issue.