Reading DSLR Triggers: This is how it works with Canon and Nikon

Reading DSLR Triggers: This is how it works with Canon and Nikon

What is the mileage of cars is the number of trips in digital SLR cameras. They reveal how many times a shutter has been pressed on a camera. As you can read this out yourself, we explain in the following guide.

Whenever you take a picture with a DSLR, the number of shots increases. Since the closure of the camera is a wearing part, the life is limited. However, the number of shots does not say how long the shutter will work – it just shows how many times a camera has been used. Sometimes a shutter breaks after 30,000 trips, another time this works perfectly after 200,000 trips.

Who sells his camera on relevant portals, should be prepared for the question of potential buyers after the number of triggers. We reveal how you can easily read this with a DSLR Canon or even Nikon.

Read Canon Triggers

If you would like to read the resolutions of a Canon EOS, you can download the free tool Canon EOS DIGITAL Info . After you have unpacked the program on your Windows machine, you connect your switched-off Canon DSLR via USB cable to your computer and turn it on. If Windows may install drivers, wait until the process is complete. Now start the previously downloaded program and turn the camera off again. With the entry "Shutter Count" you can now read off the number of previous camera releases.

Paid alternative: ShutterCount

Unfortunately, the tool does not work with all Canon cameras, as an alternative offers the tool ShutterCount . Unfortunately, this is only available for Mac and iOS and is also subject to a charge, but could still be worthwhile for users who would like to investigate more often the triggering of a camera.


For Canon cameras, the fee-based tool shutter count is also recommended.

Read Nikon Triggers with Photoshop or IrfanView

While it makes Canon photographers comparatively difficult to read the trigger, this is a little easier with Nikon. Because the manufacturer simply stores the number of triggering processes in the image data of a photo, the so-called EXIF data. Load a current image that you have taken with your Nikon camera into a program like Photoshop. In Photoshop CC you will find the trigger under "File> File Information …" . For Photoshop CS6 or older, this can be done under "File> File Information …> Advanced> Schema> ImageNumber" . Sometimes you have to look for the entry "RAW data", such as Photoshop CS6.

If you do not have Photoshop at hand, you can use the services of the freeware tool IrfanView. Open the corresponding image in IrfanView, then: "Image> Information> EXIF Data" . Scroll down now, you will find the number of triggering the entry "Total pictures".

Online services that read out triggers

It is even easier to read via various online portals. There you can easily upload an image, on the basis of EXIF data check the pages then the triggering of your DSLR. Please note that not all models of Canon, Nikon and Co. are supported. The following portals offer such a function:


  1. If you want to know how often a camera shutter release is pressed, you must read the triggering
  2. With Canon cameras this is possible with the free tool Canon EOS DIGITAL Info or ShutterCount (with costs)
  3. Nikon is easier: Here you can read the triggers using the EXIF data on Photoshop or IrfanView
  4. Alternatively, you can upload your photo to various online services, which also determine the number of trips

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