Hi Phil
Looks like a Filetype/Quality Setup.
tested on GX-8
255 RAW-Only
2 RAW & Jpg fine
3 RAW & Jpg standard
Tag is identical in RW2 & JPG
-Klaus
Hi, just to add my observations on a different cam
Quote2 RAW & Jpg fine
3 RAW & Jpg standard
The same values can also be seen when shooting JPG alone. So it is not "RAW&Jpg"
So maybe 0x0044 is some kind of JPG Quality
2 Jpg Fine
3 Jpg Normal
255 No Jpg/RAW only
Following observation on G6
Shooting Jpg only:
ImageQuality 0x0001 and 0x0044 have the same value: 2 for Fine and 3 for Normal
Shooting Jpg + RAW
0x0001 is always RAW (value 7) : 0x0044 has value 2 or 3 (depending on JPEG quality) - same in JPG and RW2
Shooting RAW only
0x0001 is RAW (value 7) and 0x0044 has value 255
Ok now I see it too.
on GX-8
Jpeg Only Fine
0x0001 = 2
0x0043 = 2
Jpeg Only Std
0x0001 = 3
0x0043 = 3
RAW&Jpeg Fine in Jpg!
0x0001 = 7 RAW!!!
0x0043 = 2 Jpg Fine
RAW&Jpeg Std in Jpg!
0x0001 = 7 RAW!!!
0x0043 = 3 Jpg Std
RAW&Jpeg Fine in RAW!
0x0001 = 7 RAW!!!
0x0043 = 2 Jpg Fine
RAW&Jpeg Std in RAW!
0x0001 = 7 RAW!!!
0x0043 = 3 Jpg Std
RAW ONLY!
0x0001 = 7 RAW
0x0043 = 255
You are right with 0x0043 is the quality of the second file/Jpg.
Its only 255=not available in Setup RAW-Only.
ok ....
But _now_ we have another problem...
why all Jpgs stored along with a RAW File get a '7' in 0x0001 !!??
That means that 0x001 is _not_ '(This)ImageQuality'
hmh
Tag 0x0001 'MainImageQuality' ( is not necessarily the File you're currently parsing )
Tag 0x0043 'JpgFileQualitySetup' fine std off
??
-Klaus
Hi Phil,
There are some patents like US8018493 'Image Data Transfer Aparatus'.
They differentiate in 'MainImageQuality' and 'SubImageQuality'
And there is some logic shown that checks for the Image-Data in the same file or in a separate File.
This I see represented in Tag 0x0001 for the 'MainImageQuality' and 0x0043 for the 'SubImageQuality'
-Klaus
Thanks!
Interesting. I think I'll leave it as "ImageQuality" with a note that this is for the main image.
Also, I have samples which show a couple more values. So this is the observed list so far:
0 => 'n/a (Movie)',
2 => 'High',
3 => 'Standard',
6 => 'Very High',
255 => 'n/a (RAW only)',
... and I am calling tag 0x0043 "JPEGQuality" since so far it has always been a JPEG.
Note that I am also calling 2 = "High" to agree with the existing ImageQuality tag.
- Phil