"MakerNote" Exif tag of Casio digital cameras

Version of this document: 1.3 (August 24, 2000)

This page documents fields of the "MakerNote" tags of JPG files produced by Casio digital cameras.

It seems since summer 1999 Casio digital cameras write the MakerNote in the following format.

These camera models/versions have been proved to use this structure:

Model Version(s) Example
QV-3000EX Ver1.002
Ver1.001
Ver1.000
08240011.JPG
None
http://www.casio.co.jp/English/qv/3000ex/gallery/ImageLib/000310175320/FOLDER01/01070097.JPG
QV-2000UX 99.09.07.11.08
99.09.03.15.44
99.09.02.16.36
99.08.27.17.20
http://www.watch.impress.co.jp/pc/docs/article/991018/ca_t6.jpg
http://www.steves-digicams.com/qv2000/dcim/100_0911/09110007.jpg

http://www.casio.co.jp/QV/Info/qv_2000ux/gallery/img/09050127.JPG
http://www.casio.co.jp/QV/Info/qv_2000ux/gallery/img/08300116.JPG
QV-8000SX 99.08.16.13.38 http://www.steves-digicams.com/qv8000/10220034.jpg

These camera models/versions have been proved NOT to use this structure:

Model Version(s) Example
QV-2000UX 99.07.13.16.01 http://www.casio.co.jp/QV/Info/qv_2000ux/gallery/img/01140050.JPG
QV-8000SX 99.06.28.19.26
99.06.25.14.47
http://www.casio.co.jp/English/qv/8000sx/gallery/ImageLib/990821233042/FOLDER01/07030012.JPG
http://www.casio.co.jp/English/qv/8000sx/gallery/ImageLib/990821233042/FOLDER01/07020045.JPG
QV-7000SX No Exif http://www.imaging-resource.com/PRODS/Q7K/Q7KDBE.JPG

QV-5000SX

No Exif

http://www.pcphotoreview.com/gallery/photos/11599.jpg

It seems all versions of QV-3000EX use this structure. "Late" versions of QV-2000UX and QV-8000SX use this structure, "early" versions of QV-2000UX and QV-8000SX don't use this structure, they have a MakerNote containing only 4 bytes data.

This is an unofficial documentation!

MakerNote consists of 20 Exif tags. Every tag has 1 component. Values are in decimal format.

No.

Tag Name

Format

Value

1 RecordingMode Unsigned Short

1: "Single Shutter"
7: "Panorama"
10: "Night Scene"
15: "Portrait"
16: "Landscape"

2 Quality Unsigned Short

1: "Economy"
2: "Normal"
3: "Fine"

3

Focusing Mode Unsigned Short

2: "Macro"
3: "Auto Focus"
4: "Manual Focus"
5: "Infinity"

4

Flash Mode Unsigned Short

1: "Auto"
2: "On"
4: "Off"
5: "Red Eye Reduction"

5

Flash Intensity Unsigned Short

11: "Weak"
13: "Normal"
15: "Strong"

6

Object distance Unsigned Long

Value in mm

7

White Balance Unsigned Short

1: "Auto"
2: "Tungsten"
3: "Daylight"
4: "Fluorescent"
5: "Shade"
129: "Manual"

8

Unknown Unsigned Short 1: ?
2: ?
3: ?
4: ?

9

Unknown
BULB ?
Unsigned Short 1: ?
2: ?

10

Digital Zoom Unsigned Long

65536 (0x10000): "Off"
65537 (0x10001): "x2"

11 Sharpness Unsigned Short

0: "Normal"
1: "Soft"
2: "Hard"

12 Contrast Unsigned Short

0: "Normal"
1: "Low"
2: "High"

13 Saturation Unsigned Short

0: "Normal"
1: "Low"
2: "High"

14 Unknown Unsigned Short  
15 Unknown Unsigned Short  
16 Unknown Unsigned Short  
17 Unknown Unsigned Long (?)
2 Unsigned Short?
Byte 1: 0
Byte 2: 64 - 160
Byte 3: 0
Byte 4: 53 - 165
18 Unknown Unsigned Short 16: ?
18: ?
24: ?

19

Unknown Unsigned Short  

20

Sensitivity Unsigned Short

QV3K:
64: "Normal"
125: "+ 1.0"
250: "+ 2.0"
244: "+ 3.0"
QV8K, QV2K:
80: "Normal"
100: "High"

Remarks:

Due to "Exif" information the tag number 17 should be of data type "unsigned long". In fact the bytes 1 and 3 seem to be constant 0, bytes 2 and 4 seem not to increase 255. The field might consist of 2 values of "unsigned short" data type or of 4 values of "byte" data type.

Tag number 6 ("Object distance") should be treated as uncertain.

Some ideas the "unknown" tags might represent:

If anybody has

concerning items on this page please write us at support@dicasoft.de.

Please write us too if you decide to use these informations in your software development. So we can inform you if the informations should have been changed.

There is a small freeware tool using these informations: DiCaInfo.

Thumber uses these informations too (starting with version 3.2.1).

Other "MakerNote" documentations:


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Last modification Oktober 28, 2000