Leica T app and DNG files

[Kyros Moutsouris]

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Is there a way to import DNG to an iPhone or iPad ?

My impression is that it imports only jpeg's

Thank you

 

 

Sent from my iPhone using Tapatalk

[julian m]

I don't believe so. And I believe the T app only imports downsampled JPEGs, not full resolution.

 

If you use the SD card reader for iPhone/iPad I believe it imports full-res JPEGs + DNGs.

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[LexS]

Is there a way to import DNG to an iPhone or iPad ?

My impression is that it imports only jpeg's

 

You need iOS 10, and Adobe Lightroom mobile:

https://www.dpreview.com/news/8805672426/adobe-lightroom-mobile-for-ios-2-5-brings-raw-dng-capture

[Kyros Moutsouris]

Let's hope that this will be on the menu of the next app update. There is no reason now not to support this

 

 

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[rpopescu]

The following may be of interest especially if anyone has a communication line with their preferred iOS or Android RAW development/processing application developer.

The T has two wi-fi modes: application control, and image gallery. In the gallery mode the camera serves as a web server providing a simple web UI to browse images, view previews and download full size images, all in JPEG format.

Seemingly there's no way to get the DNGs.

However, this is easily circumvented: for example, my T now gives me a full size JPEG at this address: http://192.168.178.27/DCIM/100LEICA/L1000071.JPG

Simply using the URL http://192.168.178.27/DCIM/100LEICA/L1000071.DNG (just a file extension change) will download the raw file.

This information could be used to import DNGs over the wi-fi connection into any application quite easily.

[rpopescu]

Here's a bit more info, for the tinkering minded.

Thankfully this seems all pretty nicely done - there won't be any need for nasty HTML parsing.

We can request two JSON URLs which return camera and file information respectively.

Requesting

http://192.168.178.27/status.json

I get 

{
 "camera_name": "Leica-4920773",
 "total_image": "7"
}

 

And requesting

http://192.168.178.27/fileinfo.json

I get:

 

[{
  "folder": "DCIM/100LEICA/",
  "date": "Fri Jul 12 2013 13:19:19 GMT+0200 (CEST)",
  "album": [{
    "date": "Tue Feb 24 2016 11: 4:21 GMT+0200 (CEST)",
    "type": "image",
    "thumb": "thumb/100LEICA/L1000071.JPG",
    "preview": "preview/100LEICA/L1000071.JPG",
    "full": "DCIM/100LEICA/L1000071.JPG",
    "portrait": "0"
   },
   {
    "date": "Tue Feb 24 2016 17:43:26 GMT+0200 (CEST)",
    "type": "image",
    "thumb": "thumb/100LEICA/L1000072.JPG",
    "preview": "preview/100LEICA/L1000072.JPG",
    "full": "DCIM/100LEICA/L1000072.JPG",
    "portrait": "0"
   },
   {
    "date": "Tue Feb 24 2016 17:45:34 GMT+0200 (CEST)",
    "type": "image",
    "thumb": "thumb/100LEICA/L1000073.JPG",
    "preview": "preview/100LEICA/L1000073.JPG",
    "full": "DCIM/100LEICA/L1000073.JPG",
    "portrait": "0"
   },
   {
    "date": "Tue Feb 24 2016 17:45:56 GMT+0200 (CEST)",
    "type": "image",
    "thumb": "thumb/100LEICA/L1000074.JPG",
    "preview": "preview/100LEICA/L1000074.JPG",
    "full": "DCIM/100LEICA/L1000074.JPG",
    "portrait": "0"
   },
   {
    "date": "Tue Feb 24 2016 17:46:13 GMT+0200 (CEST)",
    "type": "image",
    "thumb": "thumb/100LEICA/L1000075.JPG",
    "preview": "preview/100LEICA/L1000075.JPG",
    "full": "DCIM/100LEICA/L1000075.JPG",
    "portrait": "0"
   },
   {
    "date": "Tue Feb 24 2016 18:20:20 GMT+0200 (CEST)",
    "type": "image",
    "thumb": "thumb/100LEICA/L1000076.JPG",
    "preview": "preview/100LEICA/L1000076.JPG",
    "full": "DCIM/100LEICA/L1000076.JPG",
    "portrait": "0"
   },
   {
    "date": "Tue Feb 24 2016 18:20:54 GMT+0200 (CEST)",
    "type": "image",
    "thumb": "thumb/100LEICA/L1000077.JPG",
    "preview": "preview/100LEICA/L1000077.JPG",
    "full": "DCIM/100LEICA/L1000077.JPG",
    "portrait": "0"
   }]
}]

This is all very neat and easy to generate the appropriate previous and DNG download links.

Hmm, I'm tempted at the thought of making a simple import app that would allow one to download any or all of the available files...

[steveatkin]

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I like the idea of creating an app to simply grab the DNGs. I am a developer so I may dig into this over the next few weeks. I was thinking we could simply download the images and then save them to the camera role using the new iOS APIs for saving raw photos. Lightroom would then be able to simply grab the DNGs from the camera role. Do you have a list of the APIs that you have discovered from the camera?

[rpopescu]

There's nothing apart from what you see above, but it's enough and pretty simple.

In order to automatically import everything from the last import, all you need is the camera's IP address, then:

- download the status.json to get the presumably unique camera_name value, which should be used to store all other information under in case the app is used with multiple cameras;

- if exists, load the previously stored last imported file name for this camera, or perhaps even store all the previously imported file names;

- download the fileinfo.json, from which you get all the "full" values;

- generate the download URLs from the IP address, the "full" value and replace JPG with DNG, and download!

You could add lots of things on top of that, such as previews and manual selection before the automated import combined with (as mentioned above) remembering all previously imported names per camera.

 

Actually I wrote a quick bash script to download all DNGs on the camera (by creating the correct URLs from the "full" values and the base http address) but the wi-fi performance is abysmal, and the web server on the camera stopped serving files after about 4 downloads; the download speed as well is such that it takes at least 30 seconds, but I think closer to a minute to download a single DNG.

In short, it's a lot faster to just get the card out and import the old fashioned way.