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In article <LgA%f.2062$>, Phil Wheeler
<w6tuh-> wrote:

> Ted Edwards wrote:
> > Jack wrote:
> >
> >> The June issue of Digital Photographer has a good article on using a
> >> GPS(Garmin 60csx), Canon DSLR, and inexpensive software to make
> >> geo-positioning easier.
> >
> > If you download and save your active track and your pictures to your
> > computer before doing anything to them, it is a trivial project to match
> > up the time stamps from the picture files and the GPS track log. In
> > fact it so easy it could even be done with one of those spread sheet
> > thingys.
>
> Last trip was 14 days and over 2000 images. Might stress my track memory

Just remembered another software that supposed to have Photo-GPS
related functionalities, JetPhoto (for Mac OS X).

http://www.macupdate.com/info.php/id/17242

I haven't tried but people can read about it.

--

Dave wrote:
> Just curious about using a GPS receiver and taking pictures. Why might
> someone want to coordinate the two? Are they using the GPS to mark a
> waypoint (coordinates) about where the image was taken? Just wondering what
> other uses they have.
>
>

I think the main value would be in some technical arena like recording
geological or archeological finds (though DGPS may be needed for that).

For photography, if you wanted to repeat the same scene later .. but
accuracy would have to be very good.

Phil

Dave wrote:
> Just curious about using a GPS receiver and taking pictures. Why might
> someone want to coordinate the two? Are they using the GPS to mark a
> waypoint (coordinates) about where the image was taken? Just wondering what
> other uses they have.

Mapping. Documentation for, say, an archelogical dig. For somewhere up
the X river in Y country.

--
john mcwilliams

Dave on 14/04/2006 wrote:

>Just curious about using a GPS receiver and taking pictures. Why might
>someone want to coordinate the two? Are they using the GPS to mark a
>waypoint (coordinates) about where the image was taken? Just wondering
>what other uses they have.

Here is one reason.Not so much for oneself, but, for other people:
http://www.flickr.com/groups/flickrfly/

Peruse the Topics and have a look at some of the photos in the Pool. You
need Google Earth installed if you want to click on the links on the
photos to fly to the location of them on Google Earth. For many locations
in the World Google Earth is a bit imprecise presently for getting the
right coordinates, so, a GPS unit does a more accurate and easier job.

--
Rob

http://www.flickr.com/photos/canopus_archives/

http://www.dpreview.com/reviews/nikond200/page4.asp
http://www.dpreview.com/reviews/nikond1x/page4.asp

Look under the connections heading.


"Dave" <> wrote in message
news:kVB%f.65497$. com...
> Just curious about using a GPS receiver and taking pictures. Why might
> someone want to coordinate the two? Are they using the GPS to mark a
> waypoint (coordinates) about where the image was taken? Just wondering
what
> other uses they have.
>
>
>
>
> "Jack" <> wrote in message
> news:C9r%f.101$...
> > The June issue of Digital Photographer has a good article on using a
> > GPS(Garmin 60csx), Canon DSLR, and inexpensive software to make
> > geo-positioning easier.
>
>

"J. Clarke" <> wrote in message
news:...
>
> The cellular location system uses technology that may be related to or
> derived from that used in the satellite-based system but it is based on
the
> cell towers and not on satellites--it may also be able to use a
> satellite-based system if there is one in the phone but that's not the
> usual setup.
>

CDMA cellphones (Sprint and Verizon) do use actual satellite GPS data. But
to keep the price of the phone low all the phone
does collect the raw PGS data and transmit it to the cellular network. A
computer in the network uses this data and tower data to calculate
the location of the cell phone.






> I do wish that they had found something to call it other than GPS, as
using
> the same term to identify two systems that perform a related function gets
> confusing quickly.
>

On Fri, 14 Apr 2006 00:35:53 GMT, Phil Wheeler <w6tuh->
wrote:

>Dave wrote:
>> Just curious about using a GPS receiver and taking pictures. Why might
>> someone want to coordinate the two? Are they using the GPS to mark a
>> waypoint (coordinates) about where the image was taken? Just wondering what
>> other uses they have.
>>
>>
>
>I think the main value would be in some technical arena like recording
>geological or archeological finds (though DGPS may be needed for that).
>
>For photography, if you wanted to repeat the same scene later .. but
>accuracy would have to be very good.

Regardless of the difficulties reported with mapping, which I
believe is an issue with the accuracy of the maps, my GPSRs have
always shown great repeatability. I've waypointed a parking space,
driven miles across weeks and still been able to go back to the same
space, give or take one adjacent space. For most uses, I think this
would be sufficient. e.g. for repeated visits to a particular bush for
growth tracking. Assuming the vegetation wasn't too dense.

"Tad" <> wrote in message
news:zqC%f.213$...
> http://www.dpreview.com/reviews/nikond200/page4.asp The NIKON D200 also
> supports GPS units which conform to version 2.01 of the NMEA0183 protocol,
> these can be connected to the remote terminal using the optional MC-35 GPS
> adapter cord. When connected GPS data is recorded in the header of the
> image taken.

> http://www.dpreview.com/reviews/nikond1x/page4.asp Top: RS232C (serial)
> input for connection to external GPS unit (GPS location information is
> recorded in the image header)

Tad wrote:

>
> "J. Clarke" <> wrote in message
> news:...
>>
>> The cellular location system uses technology that may be related to or
>> derived from that used in the satellite-based system but it is based on
> the
>> cell towers and not on satellites--it may also be able to use a
>> satellite-based system if there is one in the phone but that's not the
>> usual setup.
>>
>
> CDMA cellphones (Sprint and Verizon) do use actual satellite GPS data.
> But
> to keep the price of the phone low all the phone
> does collect the raw PGS data and transmit it to the cellular network. A
> computer in the network uses this data and tower data to calculate
> the location of the cell phone.

Do you have a link for more information on that? Seems to me that the
expensive part is the multiple-channel receiver, not the processor.

>> I do wish that they had found something to call it other than GPS, as
> using
>> the same term to identify two systems that perform a related function
>> gets confusing quickly.
>>

--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)

On Fri, 14 Apr 2006 01:29:40 GMT, "Tad" <>
wrote:

>
>"J. Clarke" <> wrote in message
>news:...
>>
>> The cellular location system uses technology that may be related to or
>> derived from that used in the satellite-based system but it is based on
>the
>> cell towers and not on satellites--it may also be able to use a
>> satellite-based system if there is one in the phone but that's not the
>> usual setup.
>>
>
> CDMA cellphones (Sprint and Verizon) do use actual satellite GPS data. But
>to keep the price of the phone low all the phone
>does collect the raw PGS data and transmit it to the cellular network. A
>computer in the network uses this data and tower data to calculate
>the location of the cell phone.

I have to ask again -- even if it's ":raw GPS data", what has
"tower data" to add?

>> I do wish that they had found something to call it other than GPS, as
>using
>> the same term to identify two systems that perform a related function gets
>> confusing quickly.
>>
>