Digital SLR cameras have a physical shutter that wears out. Shutter actuation count is a good measure of the age of the camera. If you want to estimate how much life is still remaining in your shutter, or to estimate what to pay for a used camera, the actuation count can give you a good idea. Consumer cameras last about 100k actuations, and professional cameras often last much longer.
Exiv2 is a versatile tool for manipulating image metadata, and is often installed by default on modern Linux distributions.
To find shutter count from a photograph, a simple exiv2 command will do:
The same command works for JPG files as well
You can remove the grep filter to learn other parameters for the picture:
Exiv2 is a versatile tool for manipulating image metadata, and is often installed by default on modern Linux distributions.
To find shutter count from a photograph, a simple exiv2 command will do:
exiv2 -pa _DSC0901.NEF | grep Nikon3\.ShutterCount
The same command works for JPG files as well
exiv2 -pa _DSC0901.JPG | grep Nikon3\.ShutterCount
You can remove the grep filter to learn other parameters for the picture:
- Exif.Nikon3.LensType: The lens used (D: DX, VR: Vibration Reduction)
- Exif.Nikon3.Lens: Focal length and aperture specs of the lens used.
- Exif.Nikon3.SerialNumber: Unique serial number of the camera body printed in the bottom of the camera.
- Exif.Nikon3.ISOSpeed: ISO sensitivity of the sensor