It’s not a film canister, but I see where you’re coming from. It is a photography tool though, and a mighty powerful one at that. This little wonderful device is my newest toy, the Holux M-241 GPS Logger.
I’ve dabbled with GPS technology for years, and couldn’t live without my little Garmin Nuvi in my car, but this is a bit of a different device than GPS’s you’ve seen before. The M-241 has a high accuracy 32-channel GPS receiver that simply records you’re longitude, latitude, altitude and time. The memory in this thing is impressive, it can store about 130,000 data points.
So what do I do with a record of where I’ve been? Flickr, among other online photo services, allows you to attach a location to every photo you can take. (This process is called geotagging, click this link to see my “geotagged” photos). This used to require me to manually mark the location on a map for every photo I was publishing, which was tedious, time-consuming and not very accurate. But when I take my M-241 out to shoot, all I have to do is let it record where I go. The clock in my camera is synced up with the UTC clock in the M-241, and long story short, after a few simple operations on my computer, I can attach coordinates to every photo I take automatically.
Data from the M-241 can be viewed in Google Earth, and it can store days worth of data, so this is a useful tool outside of the photography world for tracking hiking paths, driving routes, etc. I’m not saying that everyone should go pick one up, and it certainly doesn’t replace a handheld GPS, but for $60, it can be pretty handy in any outdoorsman’s or photographer’s bag.