Pentax K-3 III, smartphone and geotagging

Grokh · 08-20-2021, 05:42 PM - **2 Likes**

Dear colleagues, please tell me if I understand correctly that Pentax K-3 III is capable of independently putting geotags on images, being connected via Bluetooth to a smartphone with location determination enabled?
That is, O-GPS is not needed anymore, is it true?

**Mikesul** · 08-20-2021, 06:57 PM - **2 Likes**

Yes. that is true. You need to use the Ricoh Image Sync app on the phone.

Grokh · 08-20-2021, 07:02 PM

Originally posted by Mikesul

Yes. that is true. You need to use the Ricoh Image Sync app on the phone.

Thanks!

**FozzFoster** · 08-20-2021, 07:30 PM - **2 Likes**

Got these for ya:

Youtu.be

Youtu.be

**StigVidar** · 08-21-2021, 12:00 AM - **1 Like**

Originally posted by Mikesul

Yes. that is true. You need to use the Ricoh Image Sync app on the phone.

And it work rather well, too. If the camera is turned on, it uses some seconds to connect, but a ordinary GPS also use some time to fix the position.

**Pentax Syntax** · 08-21-2021, 05:25 AM - **1 Like**

Yes and it’s a fairly robust solution. You will still the GPS unit for Astrotracer but simple geotagging works from the smartphone.

**UncleVanya** · 08-21-2021, 06:32 AM

Do any other Pentax cameras support this?

**clickclick** · 08-21-2021, 08:47 AM

How does it affect battery life on the phone side?

phoebus · 08-27-2021, 03:39 PM

Originally posted by UncleVanya

Do any other Pentax cameras support this?

Only the K3iii and Ricoh GRiii - so no, no other Pentax. It uses a bluetooth connection to transfer the data, and the K3iii is the first Pentax to have bluetooth.

[Image Sync: Settings > Background location information transmission]

HTH

angerdan · 08-29-2021, 10:35 AM - **1 Like**

Originally posted by Grokh

That is, O-GPS is not needed anymore, is it true?

You can either use geotagging with your smartphone or the O-GPS1 receiver.

Originally posted by clickclick

How does it affect battery life on the phone side?

The GPS-Antenna of your smartphone can consume 250mA (250ma x 3.7V = 0.925W).

**SrMi** · 08-29-2021, 12:27 PM

Originally posted by angerdan

You can either use geotagging with your smartphone or the O-GPS1 receiver.

The GPS-Antenna of your smartphone can consume 250mA (250ma x 3.7V = 0.925W).

Do you have a source for that? SiRFstart III consumes 62 mW during continuous operation. Typically GPS does not run continuously.

angerdan · 08-29-2021, 12:52 PM - **1 Like**

Originally posted by SrMi

Do you have a source for that?

SiRFstart III consumes 62 mW during continuous operation. Typically GPS does not run continuously.

The source is now offline and not archived:
chip.de/bildergalerie/Getestet-Diese-Tipps-verdoppeln-die-Akkulaufzeit-Galerie_60701107.html
chip.de/ii/2506865617_c31c34b5c7.jpeg

You have to consider that not only the antenna (data receiving) but also real time data computing and interpreting is neccesary.

Another source states 425 mW (115 mA) for turning on GPS and getting a fix.
researchgate.net/figure/Power-consumption-of-GPS-module-for-turning-on-GPS-getting-a-fix-and-turning-off_fig1_280134964

And this study shows 20mA to 400mA:
https://www.researchgate.net/publication/332218348_Modeling_of_energy_consum...zation_systems

Others show 150 mA for GPS+GLONASS (common in current mobile phones).
http://www.gsm-modem.de/M2M/m2m-faq/power-consumption-gsm-gps-tracker/

**SrMi** · 08-29-2021, 01:17 PM

Originally posted by angerdan

The source is now offline and not archived:
chip.de/bildergalerie/Getestet-Diese-Tipps-verdoppeln-die-Akkulaufzeit-Galerie_60701107.html
chip.de/ii/2506865617_c31c34b5c7.jpeg

You have to consider that not only the antenna (data receiving) but also real time data computing and interpreting is neccesary.

Another source states 425 mW (115 mA) for turning on GPS and getting a fix.
researchgate.net/figure/Power-consumption-of-GPS-module-for-turning-on-GPS-getting-a-fix-and-turning-off_fig1_280134964

And this study shows 20mA to 400mA:
(PDF) Modeling of energy consumption in GPS receivers for power aware localization systems

Others show 150 mA for GPS+GLONASS (common in current mobile phones).
What will be the power consumption of the GSM GPS Glonass tracker?

Thank you!

08-20-2021, 05:42 PM - 2 Likes	#1
Grokh Senior Member Join Date: Feb 2011 Location: St.-Petersburg Photos: Albums Posts: 267	Pentax K-3 III, smartphone and geotagging Dear colleagues, please tell me if I understand correctly that Pentax K-3 III is capable of independently putting geotags on images, being connected via Bluetooth to a smartphone with location determination enabled? That is, O-GPS is not needed anymore, is it true?

08-29-2021, 10:35 AM - 1 Like	#10
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639	Originally posted by Grokh That is, O-GPS is not needed anymore, is it true? You can either use geotagging with your smartphone or the O-GPS1 receiver. Originally posted by clickclick How does it affect battery life on the phone side? The GPS-Antenna of your smartphone can consume 250mA (250ma x 3.7V = 0.925W). Last edited by angerdan; 08-29-2021 at 10:41 AM.

08-29-2021, 12:52 PM - 1 Like	#12
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639	Originally posted by SrMi Do you have a source for that? SiRFstart III consumes 62 mW during continuous operation. Typically GPS does not run continuously. The source is now offline and not archived: chip.de/bildergalerie/Getestet-Diese-Tipps-verdoppeln-die-Akkulaufzeit-Galerie_60701107.html chip.de/ii/2506865617_c31c34b5c7.jpeg You have to consider that not only the antenna (data receiving) but also real time data computing and interpreting is neccesary. Another source states 425 mW (115 mA) for turning on GPS and getting a fix. researchgate.net/figure/Power-consumption-of-GPS-module-for-turning-on-GPS-getting-a-fix-and-turning-off_fig1_280134964 And this study shows 20mA to 400mA: https://www.researchgate.net/publication/332218348_Modeling_of_energy_consum...zation_systems Others show 150 mA for GPS+GLONASS (common in current mobile phones). http://www.gsm-modem.de/M2M/m2m-faq/power-consumption-gsm-gps-tracker/ Last edited by angerdan; 08-29-2021 at 01:07 PM.

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08-20-2021, 06:57 PM - 2 Likes	#2
Mikesul Loyal Site Supporter Join Date: Sep 2009 Location: Phoenix, AZ Posts: 7,594	Yes. that is true. You need to use the Ricoh Image Sync app on the phone.

08-20-2021, 07:02 PM	#3
Grokh Senior Member Join Date: Feb 2011 Location: St.-Petersburg Photos: Albums Posts: 267 Original Poster	Originally posted by Mikesul Yes. that is true. You need to use the Ricoh Image Sync app on the phone. Thanks!

08-21-2021, 12:00 AM - 1 Like	#5
StigVidar Site Supporter Join Date: Nov 2006 Location: Norway Photos: Gallery \| Albums Posts: 705	Originally posted by Mikesul Yes. that is true. You need to use the Ricoh Image Sync app on the phone. And it work rather well, too. If the camera is turned on, it uses some seconds to connect, but a ordinary GPS also use some time to fix the position.

08-21-2021, 05:25 AM - 1 Like	#6
Pentax Syntax Loyal Site Supporter Join Date: Feb 2010 Location: Maryland Posts: 595	Yes and it’s a fairly robust solution. You will still the GPS unit for Astrotracer but simple geotagging works from the smartphone.

08-21-2021, 06:32 AM	#7
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,406	Do any other Pentax cameras support this?

08-21-2021, 08:47 AM	#8
clickclick Loyal Site Supporter Join Date: May 2016 Location: East Coast Posts: 2,903	How does it affect battery life on the phone side?

08-27-2021, 03:39 PM	#9
phoebus Pentaxian Join Date: Jun 2013 Location: Buckinghamshire (UK) / Morbihan (FR) Photos: Gallery Posts: 470	Originally posted by UncleVanya Do any other Pentax cameras support this? Only the K3iii and Ricoh GRiii - so no, no other Pentax. It uses a bluetooth connection to transfer the data, and the K3iii is the first Pentax to have bluetooth. [Image Sync: Settings > Background location information transmission] HTH

08-29-2021, 12:27 PM	#11
SrMi Loyal Site Supporter Join Date: Jul 2021 Location: SF Bay Area Posts: 45	Originally posted by angerdan You can either use geotagging with your smartphone or the O-GPS1 receiver. The GPS-Antenna of your smartphone can consume 250mA (250ma x 3.7V = 0.925W). Do you have a source for that? SiRFstart III consumes 62 mW during continuous operation. Typically GPS does not run continuously.

08-29-2021, 01:17 PM	#13
SrMi Loyal Site Supporter Join Date: Jul 2021 Location: SF Bay Area Posts: 45	Originally posted by angerdan The source is now offline and not archived: chip.de/bildergalerie/Getestet-Diese-Tipps-verdoppeln-die-Akkulaufzeit-Galerie_60701107.html chip.de/ii/2506865617_c31c34b5c7.jpeg You have to consider that not only the antenna (data receiving) but also real time data computing and interpreting is neccesary. Another source states 425 mW (115 mA) for turning on GPS and getting a fix. researchgate.net/figure/Power-consumption-of-GPS-module-for-turning-on-GPS-getting-a-fix-and-turning-off_fig1_280134964 And this study shows 20mA to 400mA: (PDF) Modeling of energy consumption in GPS receivers for power aware localization systems Others show 150 mA for GPS+GLONASS (common in current mobile phones). What will be the power consumption of the GSM GPS Glonass tracker? Thank you!