I took advantage of two recent trips to test extending my iPhone 5 battery life to power the GPS function for all-day hikes.
One trip was a remote camping and hiking trip into Southeast Utah. The other was a more civilized series of hikes in the Canadian Rockies. Some hikes were longer than the ~3 hours my iPhone battery will last running the Motion X GPS software, even with wireless and data turned off to reduce the power drain of futile signal seeking in the backcountry. Continue reading
The post about geo-tagging photos from a GPS track featured an app using .gpx files. .kmz files are useful for working with the Google Earth app. Continue reading
There are two ways to record a track for geo-tagging photos or other uses. One is to use a smartphone with a GPS app: I use an iPhone 5 with an app called Motion-X GPS. The other is to use a GPS designed for back-country use: I have a 13-year old Garmin unit. Continue reading
I wrote in an earlier post about taking a reference photo on my iPhone 5 to capture the geo-metadata not being recorded by my Canon 60D DSLR. Now I’ve taken the next step and am using my iPhone 5 to geo-tag many DSLR photos taken at different locations in a single operation. Continue reading
My Canon DSLR, like most cameras, does not have a built-in GPS and cannot geo-tag photos.
I experimented on a recent trip with shooting a reference photo on my iPhone with the Camera app at each location where I wanted to record the location. What did the iPhone capture? Continue reading
I headed to the Red Rock Canyon area outside of Las Vegas in 2011 to test a $3 GPS app (MotionX GPS HD) on my iPad2. This model iPad has true GPS circuitry that accesses the global positioning system of satellites. It is not dependent on WiFi or data connectivity to determine its location, although it uses them where available to complement the GPS data. Not all tablets and smartphones have this. Many use other geo-location techniques such as cell tower triangulation, but these should not be called ‘GPS’.
Here are the illustrated results of a hiking test and a driving test, followed by my bottom-line assessment. Continue reading