It’s not just an image that’s taken every time you snap a photo on your iPhone. You probably didn’t know, but a wealth of data is saved within the image. It’s called the EXIF data. Here’s a quick rundown of the information saved:

File Name
File Size
File Type
Camera Model Name
X Resolution
Y Resolution
Resolution Unit
Y Cb Cr Positioning
Exposure Time
F Number
Exposure Program
Exif Version
Components Configuration
Shutter Speed Value
Aperture Value
Brightness Value
Metering Mode
Focal Length
Subject Area
Flashpix Version
Color Space
Exif Image Width
xif Image Height
Sensing Method
Exposure Mode
White Balance
Focal Length In 35mm Format
Scene Capture Type
GPS Latitude Ref
GPS Longitude Ref
GPS Altitude Ref
GPS Time Stamp
GPS Img Direction Ref
GPS Img Direction
Thumbnail Offset
humbnail Length
Image Width
Image Height
Encoding Process
Bits Per Sample
Color Components
Y Cb Cr Sub Sampling
GPS Altitude
GPS Latitude
GPS Longitude
GPS Position
Image Size
Scale Factor To 35 mm Equivalent:
Shutter Speed
Thumbnail Image
ircle Of Confusion
Field Of View
Focal Length
Hyperfocal Distance

It’s a lot of data, and as you might have spotted, the GPS coordinates of the photo are recorded within the image, which means any iOS device can use these coordinates to show where a photo was taken on a map. Here’s how to see your photos on a map using the Photos app:

While viewing a collection of images, tap on the name of the location which appears above the photos. If the images were taken on a device which records location data (such as an iPhone) then you’ll see the photos appear on a map view.

Location name Photos app

Zoom in using two fingers and you’ll be able to see exactly where an image was snapped. This is a great way to re-live a trip by following your own footsteps.

Photos on a map iPhone iOS 7

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