Today’s modern digital cameras– and most of them are smartphones– capture more than just the images we see in the viewfinder or screen. Digital cameras can capture GPS data, exposure information, even auto focus points.
In fact, most of us never pay attention to the Exif data captured by our digital cameras and smartphones, but it’s there and can be retrieved with the right tools. Search the iPhone app store and you’ll see dozens of Exif data capture apps; some free, most nominally priced. What about those of us who manage photos on our Macs?
Seek And Ye Shall Find
Many Mac graphics apps and photo enhancement apps also display some Exif data but few of those are free. Here are the official details.
Exchangeable image file format (officially Exif, according to JEIDA/JEITA/CIPA specifications) is a standard that specifies the formats for images, sound, and ancillary tags used by digital cameras (including smartphones), scanners and other systems handling image and sound files recorded by digital cameras.
After that, the details get very geeky, very fast. Suffice it to say that some of the details captured in a photo can be useful and enlightening. If your budget is tight and free is your game then you’ll appreciate the Exif App on the Mac App Store. What you get for free is all that Exif data that isn’t always easy to get, then displayed in an attractive and mostly self explanatory app.
Exif App is a viewer app only, so you won’t be able to make edits to Exif data, but that’s OK because what you’re really after is what your camera captures. I’m impressed that it gathers auto focus information, but there’s so much more to be found.
What additional Exif data is available? It’s a long list that may vary from camera to camera, but, well, it’s a long list.
Exif App also loads up and extracts Exif data from virtually any photos format from RAW to JPG and supports all EXIF, TIFF, EXIF-AUX, and JFIF structures as well as Maker Notes from Nikon, Canon, Pentax, Fuji, Panasonic, Olympus and others.
There’s much to like here. Not only do you get Shutter speed, F-stop, exposure compensation, ISO number, focus indication, flash, the focal length; if your images contain auto focus info, even the AF points are displayed, and the active points highlighted in red as in the first image above.
Exif App is new but free on the Mac App Store and the lone review doesn’t indicate what went wrong or what Mac it was used on, but my experience has been surprisingly pleasant.