[digiKam-users] --> EXIF information on NEF and PNG

[Nicolas Boulesteix]

Hi,

I just ask for captured nx because it can open non raw file and save it as
a nef file embedding original file and non destructive modification
information in metadata.

This way, if original file doesn't have exif info it could result in a nef
file without creation date metadata


Le mer. 18 sept. 2019 à 07:52, Gilles Caulier <caulier.gilles at gmail.com> a
écrit :

> Hi,
>
> NEF is a RAW container including Exif, Makernotes, and sometimes XMP
> metadata set by camera. This is true for all RAW files based on TIFF/EP
> standard, even if RAW format extend the tags list with proprietary values.
>
> In all cases whole Exif are there and mandatory to be post processed with
> a software as Capture NX. Demosaicing process need to know all shot
> conditions.
>
> Best
>
> Gilles Caulier
>
> Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <
> nico.boulesteix at gmail.com> a écrit :
>
>> Hi,
>> I'm a bit surprised for the nef file which usually have exif data. Does
>> those files come from a camera or are they created by a Nikon software like
>> Capture Nx from another file format ?
>>
>> When you look at the whole metadata, is there some metadata that look
>> like creation date or digitized date ?
>>
>>
>> Le mar. 17 sept. 2019 à 22:07, Alex Antão <alex at familiaturista.com.br> a
>> écrit :
>>
>>> Hi,
>>>
>>>     I've just exported my huge library from Photos.
>>>     No I have 800Gb of photos on my external HD, moved a lot of then on
>>> albuns acording to those created in Photos. All OK.
>>>
>>>     But... I still have a lot of files on root Folder that were not
>>> included in any Album. I want to organize them the fast and easy way
>>> possible.
>>>
>>>     So, I created a Python script that:
>>>
>>>    - Takes the file's EXIT data
>>>    - Extract Original Date from it
>>>    - Create a directory structure like YEAR/MONTH/DAY (I can choose the
>>>    level I want) and move the files inside that structure based on the EXIF
>>>    taken before.
>>>
>>>
>>>      OK, these are working, but I also have a lot of files that are NEF
>>> or even PNG (i don't tested yet on MOV, or AVI). Those files does not have
>>> EXIF data.
>>>      How can I get Date information from then ? Is it possible ?
>>>
>>> Thanks....
>>>
>>>
>>>
>>
>> --
>> Nicolas Boulesteix - Chasseur de Lueurs - http://www.photonoxx.fr
>>
>
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