Re: [Gimp-user] Gimp 2.10 and exif-information

[Johann Spies <johann spies alterit co za>]

I have exported a tif file from Darktable:

% exiv2 DSC_3804.tif
File name       : DSC_3804.tif
File size       : 30541086 Bytes
MIME type       : image/tiff
Image size      : 1920 x 1595
Camera make     : NIKON CORPORATION
Camera model    : NIKON D50
Image timestamp : 2011:04:19 21:01:07
Image number    : 
Exposure time   : 1/200 s
Aperture        : F32
Exposure bias   : 0 EV
Flash           : No flash
Flash bias      : 
Focal length    : 90.0 mm (35 mm equivalent: 135.0 mm)
Subject distance: 
ISO speed       : 800
Exposure mode   : Manual
Metering mode   : Multi-segment
Macro mode      : 
Image quality   : RAW    
Exif Resolution : 1920 x 1595
White balance   : AUTO        
Thumbnail       : None
Copyright       : 
Exif comment    : 


Then I opened it in Gimp2.10 and exported it to a jpg, png and renamed tif file. In all those cases (exported 
by Gimp) the exif-information looked like this:

% exiv2 DSC_3802.tif
File name       : DSC_3802.tif
File size       : 36912158 Bytes
MIME type       : image/tiff
Image size      : 1920 x 1595
Camera make     : 
Camera model    : 
Image timestamp : 
Image number    : 
Exposure time   : 
Aperture        : 
Exposure bias   : 
Flash           : 
Flash bias      : 
Focal length    : 
Subject distance: 
ISO speed       : 
Exposure mode   : 
Metering mode   : 
Macro mode      : 
Image quality   : 
Exif Resolution : 1920 x 1595
White balance   : 
Thumbnail       : None
Copyright       : 
Exif comment    : 

As you can see, most of the information in the original file was lost.

This is a serious problem for me if I want to use Gimp in my
postprosessing of photographs.

Regards
Johann
-- 
J.H. Spies - Tel. 021-982 2694 / 082 782 0336 / 021-808 4699(w)  
             Posbus 4668, Tygervallei 7536

     "For to me to live is Christ, and to die is gain."     
                   Philippians 1:21