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P: incorrect GPS metadata when cellular connection is weak

Explorer ,
Nov 20, 2021 Nov 20, 2021

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The photos I take while hiking with Lr and my iPhone are geotagged wrongly.

If the compas is used before taking the imeges, they are geotagged correctly.

The issue happens using two different devices. 

Both iOS and Lr are updated. 

The area is well covered by the cell network. 

Is anybody experiencing the same issue?

Guido

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iOS: iPhone

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correct answers 1 Correct answer

Adobe Employee , Nov 30, 2021 Nov 30, 2021

Setting status and adding bug number.

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Adobe Employee ,
Nov 21, 2021 Nov 21, 2021

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Please check iOS Settings > Lightroom > Location, and confirm is "While Using" is enabled.

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Explorer ,
Nov 21, 2021 Nov 21, 2021

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Yes, it is. 

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Explorer ,
Nov 21, 2021 Nov 21, 2021

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Olease note tha Photo geotag correctly the photos take in the same location.

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Explorer ,
Nov 21, 2021 Nov 21, 2021

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Sorry, early morning here. 😉

Please note that Photo geotas correctly the photos taken in the same location.

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Adobe Employee ,
Nov 29, 2021 Nov 29, 2021

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Apologies for the slow response here, I was on holiday last week.

Are you using Apple's camera, or the camera inside Lightroom?

If you are using Apple's camera, can you check iOS Settings > Privacy > Location Services > Camera, and make sure "While using" is enabled?  Also, you can see the same setting for Lightroom here too.

 

Does this help?  If not, can you share what iOS version and device model # you are using?  

 

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Explorer ,
Nov 29, 2021 Nov 29, 2021

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Hi Chalie, no problem. Thank you for considering the matter.

I am using Lr camera and location services are enabled for both iPhone camera and Lightroom. 

I am using an iPhone SE 2nd generation. iOS 15.1. Lr 7.0.2. I had the same problem with an older iPhone 6s, same software.

Photos taken with iOS camera are correctly geotagged. The iOS compas coordinates are correct.

Lr has a beaviour difficoult to categorize. It appears to be random, which doesn't make sense. 

The coordinates Lr desktop shows are 'very' wrong, sometimes they spot a location a few kilometers far from the real one.

Could it be a problem due to the poor connection to the phone network? Wrong geotagging happens most of the times while I am hiking in areas where the cell phome network is poor. Just guessing. 

 

 

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Adobe Employee ,
Nov 29, 2021 Nov 29, 2021

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"Wrong geotagging happens most of the times while I am hiking in areas where the cell phome network is poor." Your comment here makes me think the camera might be using the location info from where network/GPS is restored for the device.  I will need more time to try this and share my investigation with our developers.  Thank you for reporting your issue here so we can investigate!

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Explorer ,
Nov 30, 2021 Nov 30, 2021

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Thank you so much for taking care of the issue.

For documentation purposes, I attach here some "worst case scenario" images taken with an iPhone 6s; both iOS and Lr were updated at the latest release availabe at the time.

It is a sequence of 5 images taken in a few second (all metadata included) to be stiched in in pano.

All the images are wrongly geotagged.

Beside that, one in the middle of the sequence is geotagged differently if compared with the others. That's very wierd.

All the images are geotagged approximately in the same area (46°54'37" N 8°28'49" E), which is about 26 ml far from the right one, that is 46°32′42.049″N 8°28′57.562″E . Pls see the attacched Google Maps screenshot.

Even more wierd the GPS and altitude data are not consistent. Since altitude is not available in Lr, if you check the images GPS metadata using PS File Info you'll see that the location altitude in approximately the correct one of the actual location (around 2550 m) and, it goes without saying, it is wrong if referred to the location reconded in the metadata themselves (all the area is below 2000 m).

Hope this helps.

 

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Explorer ,
Nov 30, 2021 Nov 30, 2021

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Hi Charlie, some more evidences.

PLS see attached images.

APC_0121 and APC_0122 were taken in the same location, but they are geotagged wrongly and differently.

The correct geotagging is 45.865944123068836, 8.81357019861876

APC_124 is geotagged in the middle of a lake, which is obviously wrong.

All taken with Lr camera.

iPhone SE 2nd generation. iOS 15.1. Lr 7.0.2.

Thank you for your consideration.

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Adobe Employee ,
Nov 30, 2021 Nov 30, 2021

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Thanks for the additional info, @Guido Belli 

 

To confirm, you see the native iOS camera record good GPS data?  Our app uses platform APIs, so our camera should have the same behavior as the native iOS camera.  

 

Are you capturing HDR images?  If so, do you see this only with HDR captures, or with all kinds of images like regular DNG and JPGs from Auto or Pro mode? 

 

If this is with HDR images only, perhaps this is a matter of processing delay.  Lightroom HDR images are processed only after exiting the LR camera and returning to the main view in Lightroom. Is it possible you are capturing HDR images, but staying in the camera and NOT letting the HDRs process immediately?  

 

[Edit] Also, just to confirm, you feel this happens in areas with weaker cellular signal?  

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Adobe Employee ,
Nov 30, 2021 Nov 30, 2021

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Setting status and adding bug number.

Rikk Flohr - Customer Advocacy: Adobe Photography Products
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Explorer ,
Dec 04, 2021 Dec 04, 2021

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Hi Charlie,

A short follow up.

Please see the attached files:

- APC_0129 Lr camera, uncorrect geolocalisation 

- IMG_0053 iOS native camera, geolocalisation OK

- APC_0130 Lr camera. geolocalisation OK

The photos were taken in a quick sequence. Metadata included.

- IMG_0054 is the screenshot of the compass, same location as above photos, a few seconds after the sequence was taken. BTW, as you can see, the cellular connection wasn't weak, but no data connection.

iOS 15.1, Lr 7.0.2, iPhone SE 2nd generation

Lr Pro mode, non HDR. 

iPhone native camera auto mode. APC_0129.jpgAPC_0130.jpgIMG_0053.jpgIMG_0054.PNG

Thank you for your help.



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