Panasonic DMC-LX1

[Archive]

[Originally posted by hardloaf on 2006-04-22 00:47:52-07]

Phil, love your ExifTool and use often.
Recently I've discovered that it doesn't recognize few basic options for my Panasonic DMC-LX1 like ISO and image size.
With -u it shows them and if you can please fix this.

 
Exif 0x0017                     : 80

is ISO (verified on few shots with different ISO).

These two look like an image size (probably with black frame?):

Interoperability Version        : 3880

Exif 0x0003                     : 2170

And these two are close:

Exif 0x0006                     : 2164

Exif 0x0007                     : 3852

Full output:

Code:

ExifTool Version Number         : 6.15
File Name                       : P1000430.RAW
File Size                       : 16 MB
File Modification Date/Time     : 2005:12:19 09:20:02
File Type                       : RAW
MIME Type                       : image/x-raw
Interoperability Index          : 0200
Interoperability Version        : 3880
Exif 0x0003                     : 2170
Exif 0x0004                     : 4
Exif 0x0005                     : 12
Exif 0x0006                     : 2164
Exif 0x0007                     : 3852
Exif 0x0008                     : 1
Exif 0x0009                     : 1
Exif 0x000a                     : 12
Exif 0x000b                     : 34828
Exif 0x000d                     : 1
Exif 0x000e                     : 4095
Exif 0x000f                     : 4095
Exif 0x0010                     : 4095
Exif 0x0017                     : 80
Exif 0x0018                     : 0
Exif 0x0019                     : 0
Exif 0x001a                     : 0
Exif 0x001c                     : 0
Exif 0x001d                     : 0
Exif 0x001e                     : 0
Exif 0x0024                     : 584
Exif 0x0025                     : 264
Exif 0x0026                     : 315
Make                            : Panasonic
Camera Model Name               : DMC-LX1
Strip Offsets                   : 1536
Orientation                     : Horizontal (normal)
Rows Per Strip                  : 2170
Strip Byte Counts               : 16839200
Exposure Time                   : 1/80
F Number                        : 4.5
Exposure Program                : Aperture-priority AE
Exif Version                    : 0220
Date/Time Original              : 2005:12:19 09:20:01
Create Date                     : 2005:12:19 09:20:01
Exposure Compensation           : 0
Max Aperture Value              : 2.8
Metering Mode                   : Multi-segment
Flash                           : Off
Focal Length                    : 20.9mm
Flashpix Version                : 0100
Color Space                     : sRGB
File Source                     : Digital Camera
Aperture                        : 4.5
Flash                           : Off
Shutter Speed                   : 1/80
Focal Length                    : 20.9mm

Thank you!

[Archive]

[Originally posted by exiftool on 2006-04-22 12:38:23-07]

Thanks for this information.  The Panasonic RAW files may be a bit difficult to deal with since they put non-standard information in IFD0 before the Make/Model tags.  I will need some other technique to identify these files so I can add support for the Panasonic-specific information.  I only have one sample, but with my sample the first 3 bytes of the file are "IIU" (followed by a zero byte).  This should be sufficient to recognize it as a Panasonic RAW file if all of them start with this sequence of bytes.  Could you verify this for me by looking at some of your RAW files?  If this is holds true, then I'll add support for the new tags that you discovered as soon as I get back from vacation (in a week or two).  Thanks.

- Phil

[Archive]

[Originally posted by hardloaf on 2006-04-25 17:53:15-07]

I checked few files and the IIU\0 signature appears to be always valid. The same is true for Leica DLUX-2 camera (re-branded dmc-lx1).
You may find few more RAW (and JPG by the way) samples for these cameras with different ISOs here:
http://www.lexa.ru/andyt/DMC-LX1_vs_D-LUX2/

Thank you for all your efforts and have a good vacation!

[Archive]

[Originally posted by exiftool on 2006-05-01 19:17:04-07]

I was in Hatteras NC on a windsurfing vacation and we had strong winds for the last 4 days, so the vacation was great, thanks!

And thanks for the samples.  I have added support to recognize the new tags in Panasonic RAW images, and this feature will appear in version 6.16, but I'm not going to release it officially for a while so I've made a 6.16 pre-release available for you to test out before the official release.

Tags 0x02 and 0x03 are the sensor width and height in pixels including the black frame as you guessed.  I'm calling tags 0x06 and 0x07 ImageHeight and ImageWidth since this makes sense, although they are not exactly the same as the output JPG images.  The JPG image sizes are a bit smaller, but I think this may be just to get dimensions that are a multiple of 16 (possibly because of the processing algorithms which are applied).

For reference, below are all the sizes for D-LUX2/DMC-LX1 and DMC-FZ30 images.  David Coffin's dcraw generates a larger converted image than the Panasonic software, and I have also tabulated these sizes.

Code:

         sensor    image         jpg          dcraw
             A        B            C             D
width      3880     3852 (A-28)  3840 (A-40)   3858 (A-22)
height     2170     2164 (A-6)   2160 (A-10)   2170 (A)

width      3304     3276 (A-28)  3264 (A-40)   3288 (A-16)
height     2458     2452 (A-6)   2448 (A-10)   2458 (A)

Hmmm... one would think that "<code>" text would use a fixed-width font, but not on my browser. Oh well.  So the above table columns may not be aligned.

[Archive]

[Originally posted by hardloaf on 2006-05-21 19:58:05-07]

I've tested 6.19 with few my files at different ISOs and it looks just fine!
Thank you!