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Geotagging - what do you use?

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richardday said:
What about the various Garmin GPS devices that many seem to use? Are
they data loggers as well as map positioning displays and thereby
serve a dual purpose?
Click to expand...
Yes. Generally your handheld GPS and some auto-nav systems have a decent amount of internal memory dedicated to the "track log". We have 6 Garmins, a Magellan and a Lowrance and they all behave in very similar manners. The difference is in how you access the data. Usually there is somewhere between 5,000 and 20,000 waypoint/time entries, is enough to record a week's worth of activity with diminishing detail as a function of time.
 
richardday said:
What about the various Garmin GPS devices that many seem to use? Are
they data loggers as well as map positioning displays and thereby
serve a dual purpose?
Click to expand...
One thing to watch with Garmin units is that if you save the track log in the unit ( perhaps to split tracks into seperate days ) it strips out the time information rendering the log useless for geotagging. Really stupid of Garmin. So, in practise, you have to keep the active log going.
 
Jos de Bont said:
And the Bluetooth GPS has no internal memory, but gives the GSP data
through Bluetooth immidiately to another device (like a computer).
Click to expand...
Some dataloggers do have bluetooth.

The BT can be used in two ways I believe ( depending on the model ).

1) to transfer the log data to the PC as an alternative to USB

2) use the GPS data over BT while the logger simultaneously logs the data.
 
Who want's time and date stored to your pictures, who want's all the other EXIF into our photo's. Who want ALL those other features in our camera's.

I would really like it as a help to catalogue my photo's, just as helpfull and perhaps even more as time and date. So the only thing it has to do, is writing a waypoint in the EXIF.

And if they can build a whole device and sell it for $40,--, I think Pentax should be able to build it into a camera for less as even $10,-.

With kind regards,

Jos



http://www.xs4all.nl/~josdeb/
 
Just discovered that Microsoft (sorry, don't mean to swear on the forum), has a Pro Photo Tool that includes geotagging. Haven't tried it, but might be worth a look. Appears to be a free download, and MS has some articles on it.

http://www.micr osoft.com/prophoto/downloads/tools.aspx
--
'My favorite subject to photograph is the dark side of the sun.'
Paul
 
Interesting thread. I am always suprised that not everyone is geotagging. But every time I start tagging I remember why.

I have an adapt AD-850, this is a GPS BT device with memory. When Istart the device I make a BT connection with my mobile phone and take a picture of the GPS time. This is to get the time offset between camera and GMT. The AD-850 uses a horrible piece of cr-p as software, writes out a binary file and translates this in a kml file without time and a logfile which isn't related to any gps standard. I made a python script to translate the logfile to gpx format. I use gpsphotolinker, I am on a mac, to read in all pictures and gpx data. The first picture is the phone with GMT and I calculate the offset between GMT and camera time. Than I check some pictures to see if everything is okay and convert all pictures in one go. These are DNG files BTW, before I do anything else I geotag all pictures.

Dirk
 
And another one. Please Phil, build feature in the site to save your favorite threads.

-----------------------
http://www.image33.nl
 
Jos de Bont said:
Who want's time and date stored to your pictures, who want's all the
other EXIF into our photo's. Who want ALL those other features in our
camera's.

I would really like it as a help to catalogue my photo's, just as
helpfull and perhaps even more as time and date. So the only thing it
has to do, is writing a waypoint in the EXIF.

And if they can build a whole device and sell it for $40,--, I think
Pentax should be able to build it into a camera for less as even
$10,-.
Click to expand...
Just like they did by incorporating a timer release in the K20D, thereby eliminating the need for an external $150 device.
--
Richard Day - 'Carpe Diem!'
Gloucester UK
 
Eric C in OK said:
Sgt_Strider said:
Hi Eric, I have a Garmin 60CSX and I'm wondering how do you
synchronize the time between your DSLR and the GPS device? I heard
GPS device uses UTC time and I don't think DSLR uses the same format.
I'll be in China next week and all of China including Hong Kong are
in the same time zone. How can I ensure that the time from my camera
correctly matches my GPS?
Click to expand...
I don't have the 60CSX, but I have 5 other Garmin models and they all
allow me to set both the time zone and whether I'm currently on DST.
You should be able to do the same with yours. A GPS is nothing more
than a radio with a constellation of super-accurate clocks in orbit.
Internally it may be operating on UTC, but you can change the display
to reflect whatever time zone you are in. BTW, if you ever need to
know which clock in your house is "correct", use the GPS to set all
the other clocks.

Or, you could set it to your home TZ and leave it. This way you
won't be twiddling your gadgets in the field. The software I use to
geotag allows me to enter an offset into the time field to allow for
these types of adjustments.

I admit that I'm pedantic and just slightly obsessive-compulsive, but
I want the camera and GPS to be accurate to the second. To be
honest, it's probably OK to be accurate only to the minute. Anyway,
I set the GPS to display the time, including seconds. Then, on my
camera, I set it to the same time, but I keep the cursor on the
seconds. When the GPS switches over to the next minute, I change the
minute on the camera. This seems to reset the clock on the camera to
:00 seconds. I'm not 100% on this since the camera doesn't display
seconds, but it seems to work.

Enjoy your trip.

-E
Click to expand...
Hi Eric,

So basically you're just letting the program offset the time differences then? Or that the GPX files that your Garmin units are outputting are in the same timezone/format as your camera's time? I heard that Garmin's time is in UTC format regardless of what you set your GPS device to display.
 
Sgt_Strider said:
So basically you're just letting the program offset the time
differences then? Or that the GPX files that your Garmin units are
outputting are in the same timezone/format as your camera's time? I
heard that Garmin's time is in UTC format regardless of what you set
your GPS device to display.
Click to expand...
The GPX files that I've peeked at show the time as UTC. GPicSync allowed me to choose a time zone offset on that sample I showed earlier. It turns out that I messed up the DST flag in my camera, so the dates weren't in total sync, so I was able to dial in a custom offset to make it work. I think any good logging software will take these kinds of situations into consideration and allow you to make adjustments.
 
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