gps for nikon d7200

[Adriano]

hello all
anyone knows a gps working with nikon d7200 (except for the original
nikon device)?
I have a Marrex mx g20m mk ii that seems to be not compatibile.
gps itself works both stand alone and connected to a a d300 body, and
I like to understand if the problem is compatibility or if the camera
has some problem.
My doubts comes because the "mk ii" is sold as "specific compatibile
win d7200", and this means that this camera has something different
from older models.
Camera has the last firmware (1.01)
thanks

Adriano

[PeterN]

Did you follow the instructions in the manual?
<http://www.marrex.cn/UploadFiles/201510149473518.pdf>

If so, does your D7200 work with a different GPS?

I would think that there is possibly something wrong with a connecting
cable. If the D7200 does not work with a different GPS, I would think
the issue is with the camera.



--
PeterN

[Savageduck]

Since this is not the Nikon GPS there is the possibility of a D7200
firmware incompatibility. If that is the case it would be Marrex which
needs to update/modify as Nikon is not obliged to ensure third party
accessories function on their equipment.

--
Regards,

Savageduck

[Alan Browne]

I don't know about your particular kit, but you can always use EXIFTOOL
to merge your GPS locations with photos in post processing if you can't
get it to function with the camera. This assumes the GPS records
position and time data.

1. The camera time has to be reasonably accurate (within 1 minute is
adequate for my needs). So I sync the camera time every few months.
Also care to the time zone may be needed. I simply use UTC for camera
time and don't worry about it.

2. The GPS data needs to be extracted for the time of the photos on the
camera.

3. Copy all of that data (images and GPS data) to a known location on
your PC (EXIFTOOL works on Windows, Unix (Mac) and Linux machines).

4. You need to master the arcane commands of EXIFTOOL. That can take
some work.

Wow, that is tedious, huh? So look around for the various photo tagging
apps that exist, free and otherwise. They generally use EXIFTOOL under
the hood but do all the heavy lifting for you.

--
She hummed to herself because she was an unrivaled botcher of lyrics.
-Nick (Gone Girl), Gillian Flynn.

[David Taylor]

On 24/06/2016 14:39, Alan Browne wrote:
[]

> I don't know about your particular kit, but you can always use EXIFTOOL
> to merge your GPS locations with photos in post processing if you can't
> get it to function with the camera. This assumes the GPS records
> position and time data.
>
> 1. The camera time has to be reasonably accurate (within 1 minute is
> adequate for my needs). So I sync the camera time every few months.
> Also care to the time zone may be needed. I simply use UTC for camera
> time and don't worry about it.
>
> 2. The GPS data needs to be extracted for the time of the photos on the
> camera.
>
> 3. Copy all of that data (images and GPS data) to a known location on
> your PC (EXIFTOOL works on Windows, Unix (Mac) and Linux machines).
>
> 4. You need to master the arcane commands of EXIFTOOL. That can take
> some work.
>
> Wow, that is tedious, huh? So look around for the various photo tagging
> apps that exist, free and otherwise. They generally use EXIFTOOL under
> the hood but do all the heavy lifting for you.

Far easier than using EXIFtool is the free GeoSetter:

http://www.geosetter.de/en/

which does all the EXIFtool stuff for you.

--
Cheers,
David
Web: http://www.satsignal.eu

[Adriano]

Il 24/06/2016, PeterN ha detto :

thank you for your reply

> Did you follow the instructions in the manual?
> <http://www.marrex.cn/UploadFiles/201510149473518.pdf>

yes, of course.

> If so, does your D7200 work with a different GPS?

I have an old "Columbus", that doesn't list the 7200 in the
compatibility list. The difference is that the marrex mk2 specify that
it is the "new version", compatible with 7200 (and this is the reason
why I bought it). The camera is brand new, but before I receive the gps
I upgraded the firmware from 1.00 to 1.01

> I would think that there is possibly something wrong with a connecting cable.
> If the D7200 does not work with a different GPS, I would think the issue is
> with the camera.

The customer sent me a new cable and suggest me to reset the camera,
but nothing happen
I know it can be a camera problem, but all seems to work, except the
gps, and it is not easy to check the camera by the seller as I bought
it on internet and it is quite far from me. I could go to the seller of
cpourse, but I'd like to do some test before, to be sure that the
problem is the camera.

adriano

[Adriano]

Savageduck ha usato la sua tastiera per scrivere :

> Since this is not the Nikon GPS there is the possibility of a D7200 firmware
> incompatibility. If that is the case it would be Marrex which needs to
> update/modify as Nikon is not obliged to ensure third party accessories
> function on their equipment.

yes, of course. The compatibility problem was my first idea (gps is
working with the old d300 body), but the producer state that this is
the new version specific for d7200. Do you know if there is some test
to check the accessory port on the camera?
thanks

Adriano

[Adriano]

Sembra che David Taylor abbia detto :

thank you all.
Yes, I know that it is possible to add the exif data.
Unfortunately the marrex is not a logger. Data are written in the shot
moment. Maybe I could use an adroid app to log the track and extract
the time\position data....boring, but it will be the only solution if I
cannot understand where the problem is

regards

Adriano

[Savageduck]

Unfortunately I don't know of any such test. For GPS with my D300S I
use the Nikon GP-1. For my X-E2 I sync GPS data with my iPhone using
the Fujifilm "Cam Remote" app via WiFi.

--
Regards,

Savageduck

[PeterN]

Are you near Rome?
There is a highly recommended repair place:
Via Giuseppe Manno, 3
00179 Rome
Italy

Otherwise I can't help you more.


--
PeterN

[Adriano]

PeterN ci ha detto :

> Are you near Rome?

no, Milan. But I'm confident that even here there will be a service.
Thanks

Adriano

[Alan Browne]

Yes, why I mention such tools (and there are many) in that last paragraph.

That said, I find them tedious to set up and use the command line
version. I have "template" commands stored in a .txt file and I just
edit that to process a batch of photos in far less time than using
poorly designed GUI's.

[Alan Browne]

There are many apps for Android (and iOS) that record position.

[David Taylor]

On 25/06/2016 14:34, Alan Browne wrote:
> On 2016-06-24 12:17, David Taylor wrote:

[]

>> which does all the EXIFtool stuff for you.
>
> Yes, why I mention such tools (and there are many) in that last paragraph.
>
> That said, I find them tedious to set up and use the command line
> version. I have "template" commands stored in a .txt file and I just
> edit that to process a batch of photos in far less time than using
> poorly designed GUI's.

Yes, I appreciated the mention. For me, not all the photos are taken in
a location where GPS was available, and occasionally the GPS location
can be further off than I would like (e.g. just after switch on), so I
very much prefer the graphical approach which provides visual
confirmation that the location is correct, and allows easy geo-tagging
of images where the information is otherwise missing.

Certainly if each image needed to be processed by hand that would be a
major issue, but GeoSetter can process as many images as you want in a
batch mode, and it then leaves you with list of images where manual
intervention is required.

http://www.geosetter.de/en/

[Alan Browne]

On 2016-06-25 10:11, David Taylor wrote:
> On 25/06/2016 14:34, Alan Browne wrote:
>> On 2016-06-24 12:17, David Taylor wrote:
> []
>>> which does all the EXIFtool stuff for you.
>>
>> Yes, why I mention such tools (and there are many) in that last
>> paragraph.
>>
>> That said, I find them tedious to set up and use the command line
>> version. I have "template" commands stored in a .txt file and I just
>> edit that to process a batch of photos in far less time than using
>> poorly designed GUI's.
>
> Yes, I appreciated the mention. For me, not all the photos are taken in
> a location where GPS was available, and occasionally the GPS location
> can be further off than I would like (e.g. just after switch on), so I
> very much prefer the graphical approach which provides visual
> confirmation that the location is correct, and allows easy geo-tagging
> of images where the information is otherwise missing.

I leave my GPS recorder on all of the time while out and about taking
photos so there is no startup time and error. If the reception is bad,
then at least the position recorded will be close. It's not always
possible to determine where you were from GE or other sources as all you
see is the canopy with few ground details to figure out where you were
with any accuracy. If one had a map and remembered (or marked) where on
it one was, then one can get a much closer fix. Not always the case.

I try to keep my GPS receiver above my head. In the winter that's under
my toque (also keeps the batteries warm); in the summer attached to the
top of my bush hat if I remember to bring it. That helps in the woods
where sat reception can be very poor.

Also record a backup on the iPhone. Not as accurate, especially in the
woods, but there at least if the other device screws up or dies.

>
> Certainly if each image needed to be processed by hand that would be a
> major issue, but GeoSetter can process as many images as you want in a
> batch mode, and it then leaves you with list of images where manual
> intervention is required.

And I get the same by using the command line. If any are off I can use
EXIFTOOL to set a specific location for any particular photo or batch.

Hard position set for a batch of photos:
exiftool -overwrite_original_in_place -GPSLatitude=42.1902550
-GPSLatitudeRef=N -GPSLongitude=78.122532 -GPSLongitudeRef=W *.dng
(Replace * with a given file name if needed - copy/paste is very useful).

Position set from a GPS file for a batch of files.
exiftool -geotag=GPS_20120604_193428.log -overwrite_original_in_place
-geosync=-4:00:00 *.dng

(Have to set the geosync according to daylight savings. Unfortunately,
EXIFTOOL uses the computer time whereas my camera records UTC time).

It could even be useful to write a simple program to take in filenames
and positions and format the above and invoke EXIFTOOL, I suppose.

[David Taylor]

I'm perhaps using the GPS in a more urban environment, and tend to
switch if off when stopping in a café or restaurant. It's when leaving
that I may forget to switch the GPS receiver back on, or it may take a
couple of minutes to acquire lock (I know it should be faster...).

I've not tried using the phone as a track logger. How much does it
affect battery life?

Hard position setting via a batch file is fine, but you need to select
the files and I find that easier graphically selecting from a list.
Dragging a pointer to a map location isn't hard either. I keep all my
photos in UTC time as you do, and GeoSetter seems to get the UTC times
correct when it reads the .GPX file, so there are no issues with EXIFTOOL.

Yes, you could write a program, and it would be the Mac equivalent of
GeoSetter. Many would thank you for it! Maybe there already is one?

[Savageduck]

On 2016-06-25 15:46:53 +0000, David Taylor

None of these are perfect, but they provide a method for writing GEO tags.
<https://itunes.apple.com/us/app/photo-geotag/id957217448?mt=12>
<https://www.houdah.com/houdahGeo/?lang=en>
<http://www.snafu.org/GeoTag/>

I currently use a Nikon GP-1 on my D300S and it has always given me
accurate results in the open, with accuracy dropping with heavy
overhead cover.
With my Fujifilm X-E2 I sync with the "Cam Remote" app on my iPhone,
and so far the accuracy is good enough for my purposes.
For making any tag adjustments/edits or adding GPS data to untagged
image files, I use the Lightroom "Map" module.

--
Regards,

Savageduck

[Savageduck]

There is also this:
<https://itunes.apple.com/us/app/gpx-photo-geotagger/id1074087758?mt=12>
--
Regards,

Savageduck

[David Taylor]

On 25/06/2016 17:29, Savageduck wrote:
[]

> None of these are perfect, but they provide a method for writing GEO tags.
> <https://itunes.apple.com/us/app/photo-geotag/id957217448?mt=12>
> <https://www.houdah.com/houdahGeo/?lang=en>
> <http://www.snafu.org/GeoTag/>
>
> I currently use a Nikon GP-1 on my D300S and it has always given me
> accurate results in the open, with accuracy dropping with heavy overhead
> cover.
> With my Fujifilm X-E2 I sync with the "Cam Remote" app on my iPhone, and
> so far the accuracy is good enough for my purposes.
> For making any tag adjustments/edits or adding GPS data to untagged
> image files, I use the Lightroom "Map" module.

I'm sure folks will appreciate that, thanks!

I must admit that having the built-in GPS on both my iPad and my
Motorola G3 phone makes it a lot more convenient than any software!

[Savageduck]

On 2016-06-25 17:23:22 +0000, David Taylor

Just one issue with the Fujifilm "Cam Remote" app with iOS. One must
ensure that iOS Location services is enabled and since the only options
are "Never" or "While Using the App" you have to make sure the App is
activated, otherwise the Geodata logging will not take place and the
sync will fail. Take those steps and it works just fine.
--
Regards,

Savageduck

[Savageduck]

For those who might be interested in the Fujifilm solution.
<http://app.fujifilm-dsc.com/en/camera_remote/>
--
Regards,

Savageduck

[Alan Browne]

On 2016-06-25 11:46, David Taylor wrote:
> On 25/06/2016 16:27, Alan Browne wrote:
>
>> It could even be useful to write a simple program to take in filenames
>> and positions and format the above and invoke EXIFTOOL, I suppose.
>
> I'm perhaps using the GPS in a more urban environment, and tend to
> switch if off when stopping in a café or restaurant. It's when leaving
> that I may forget to switch the GPS receiver back on, or it may take a
> couple of minutes to acquire lock (I know it should be faster...).
>
> I've not tried using the phone as a track logger. How much does it
> affect battery life?

A bit I'm sure. I had a fully charged iPhone 6P yesterday go down about
15% while fooling around with several nav apps at once. (Apple Maps,
Google Maps, GPS Kit, In Motion, 3 different compasses, Flight Radar,
etc.) over the course of 1 Bloody Ceasar and 2 beers while the charcoal
was getting to the appropriate shade of grey.

I've used my other iPhone (4) while orienteering to record my track over
the period of an hour or so without much battery use. But it was a
single app recording (GPS Kit or In Motion GPS). Also on a 6 hour
Rogaine without depleting the battery all that much.

It would be nice if the sampling/recording rate could be set by the
user. For slow paced photography out in the boonies, a 1 / 10 s rate
would be more than ample for most photography I do. (1 / minute even).

In turn it would be further nice, therefore, if the API's for the GPS
could be told to take it easy and not drive the GPS correlators all that
hard. Combined, that would save significant energy for someone wanting
to record all day long.

> Hard position setting via a batch file is fine, but you need to select
> the files and I find that easier graphically selecting from a list.
> Dragging a pointer to a map location isn't hard either. I keep all my

Just a copy paste, really. No biggie. My objection to the GUI tools is
they've proven to be poorly designed when selecting folders and file
types, not remembering last folder used and so on. Perhaps I should DL
a few to checkout as I haven't looked at any in several years.
Hopefully they've improved in these respects.

> photos in UTC time as you do, and GeoSetter seems to get the UTC times
> correct when it reads the .GPX file, so there are no issues with EXIFTOOL.

Just means GeoSetter is using the correct commands when it applies the
change.

>
> Yes, you could write a program, and it would be the Mac equivalent of
> GeoSetter. Many would thank you for it! Maybe there already is one?

I write lots of utilities for my purposes - perhaps too tailor made for
general purpose use. Usually command line with some specific
interactions. They generally will compile for Mac, Windows, Linux -
though for Windows a bit of changes are required to handle the file
system structure.

[astigm...@gmail.com]

I have used Aokatec on several Nikon cameras, including the D7000.
http://www.aokatec.com/AK-G.html

That would be the AK-G7 model.
The company is Chinese. I've ordered over the Internet. It works, although not always as fast as advertised.

[Adriano]

Alan Browne ha detto questo sabato :

>
> There are many apps for Android (and iOS) that record position.

I know, but gps (imho) is better. Marrex write the position and bearing
in the exif data. Very usefull in geological images.

regards

adriano

[Adriano]

David Taylor ha detto questo sabato :

> I've not tried using the phone as a track logger. How much does it affect
> battery life?

I suppose it depends also by the telephone.
I use an old galaxy s3 with a 3000mA battery; walking with runtastic it
use about 25% of the battery in 2 hours.
(it is a phone without sim card, used only with runtastic)

regards

Adriano

[Adriano]

astigm...@gmail.com ha usato la sua tastiera per scrivere :

> I have used Aokatec on several Nikon cameras, including the D7000.
> http://www.aokatec.com/AK-G.html
>
> That would be the AK-G7 model.
> The company is Chinese. I've ordered over the Internet. It works, although
> not always as fast as advertised.

Thanks; i will try after being sure it is not a camera problem

adriano

[David Taylor]

Thanks, Adriano. I found a few GPS logging programs, so I'll try one or
two out.