something weird in my exposure

pellicle

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pellicle
Hi

I took this shot the yesterday, and didn't think much of the data until after I'd posted it here (and observed the EXIF)

p1110723-01-jpg.jpg
Subscribe to see EXIF info for this image (if available)


I thought whaaat? I know I set the camera at 100 and yet there it is showing 160. Even weirder is that
  • the previous image is at 100ISO
  • the camera is set (still) to 100ISO
  • the ISO steps is set to 1 EV, meaning I can't even set 160
I just wondered if the setting of exposure compensation (+0.66) had that effect, but I just tested that and no ...

So, does anyone have any ideas what may have gone on?

EXIF as per exiftool (sorry, I haven't upgraded it yet ;-) )
Code:
     - ExifTool Version Number         : 10.64
     - File Name                       : P1110723.RW2
     - Directory                       : .
     - File Size                       : 14 MB
     - File Modification Date/Time     : 2019:03:16 17:47:42+10:00
     - File Access Date/Time           : 2019:03:17 12:08:39+10:00
     - File Creation Date/Time         : 2019:03:17 12:08:39+10:00
     - File Permissions                : rw-rw-rw-
     - File Type                       : RW2
     - File Type Extension             : rw2
     - MIME Type                       : image/x-panasonic-rw2
     - Exif Byte Order                 : Little-endian (Intel, II)
0x0001 Panasonic Raw Version           : 0310
0x0002 Sensor Width                    : 4060
0x0003 Sensor Height                   : 3016
0x0004 Sensor Top Border               : 4
0x0005 Sensor Left Border              : 8
0x0006 Sensor Bottom Border            : 3004
0x0007 Sensor Right Border             : 4008
0x0008 Black Level 1                   : 1
0x0009 Black Level 2                   : 3
0x000a Black Level 3                   : 12
0x000e Linearity Limit Red             : 16383
0x000f Linearity Limit Green           : 16383
0x0010 Linearity Limit Blue            : 16383
0x0017 ISO                             : 160
0x0018 High ISO Multiplier Red         : 0
0x0019 High ISO Multiplier Green       : 0
0x001a High ISO Multiplier Blue        : 0
0x001c Black Level Red                 : 0
0x001d Black Level Green               : 0
0x001e Black Level Blue                : 0
0x0024 WB Red Level                    : 518
0x0025 WB Green Level                  : 263
0x0026 WB Blue Level                   : 388
0x0000 Num WB Entries                  : 7
0x0001 WB Type 1                       : Fine Weather
0x0002 WB RGB Levels 1                 : 499 256 378
0x0005 WB Type 2                       : Cloudy
0x0006 WB RGB Levels 2                 : 541 256 346
0x0009 WB Type 3                       : Shade
0x000a WB RGB Levels 3                 : 597 256 319
0x000d WB Type 4                       : Tungsten (Incandescent)
0x000e WB RGB Levels 4                 : 339 256 564
0x0011 WB Type 5                       : Flash
0x0012 WB RGB Levels 5                 : 584 256 328
0x0015 WB Type 6                       : D55
0x0016 WB RGB Levels 6                 : 462 256 372
0x0019 WB Type 7                       : ISO Studio Tungsten
0x001a WB RGB Levels 7                 : 339 256 564
0x011a X Resolution                    : 180
0x011b Y Resolution                    : 180
0x0128 Resolution Unit                 : inches
0x0131 Software                        : Ver.1.2
0x0132 Modify Date                     : 2019:03:16 17:47:42
0x0213 Y Cb Cr Positioning             : Co-sited
0x9101 Components Configuration        : Y, Cb, Cr, -
0x9102 Compressed Bits Per Pixel       : 2
0x9208 Light Source                    : Unknown
0x0001 Image Quality                   : Raw
0x0002 Firmware Version                : 0.1.2.0
0x0003 White Balance                   : Auto
0x0007 Focus Mode                      : AF-S
0x000f AF Area Mode                    : Tracking
0x001a Image Stabilization             : On, Mode 2
0x001c Macro Mode                      : Off
0x001f Shooting Mode                   : Program
0x0020 Audio                           : No
0x0021 Data Dump                       : (Binary data 6152 bytes, use -b option to extract)
0x0024 Flash Bias                      : 0
0x0025 Internal Serial Number          : (F92) 2010:03:02 no. 0166
0x0026 Panasonic Exif Version          : 0291
0x0028 Color Effect                    : Off
0x0029 Time Since Power On             : 00:00:16.96
0x002a Burst Mode                      : Off
0x002b Sequence Number                 : 0
0x002c Contrast Mode                   : Dynamic (Color Film)
0x002d Noise Reduction                 : Standard
0x002e Self Timer                      : Off
0x0030 Rotation                        : Horizontal (normal)
0x0031 AF Assist Lamp                  : Enabled but Not Used
0x0032 Color Mode                      : Normal
0x0033 Baby Age                        : (not set)
0x0034 Optical Zoom Mode               : Standard
0x0035 Conversion Lens                 : Off
0x0036 Travel Day                      : n/a
0x0039 Contrast                        : Normal
0x003a World Time Location             : Home
0x003b Text Stamp                      : Off
0x003c Program ISO                     : 100
0x003d Advanced Scene Type             : 1
0x003f Faces Detected                  : 0
0x0040 Saturation                      : Normal
0x0041 Sharpness                       : Normal
0x0042 Film Mode                       : Dynamic (color)
0x0044 Color Temp Kelvin               : 2600
0x0045 Bracket Settings                : No Bracket
0x0046 WB Shift AB                     : 0
0x0047 WB Shift GM                     : 0
0x0048 Flash Curtain                   : n/a
0x0049 Long Exposure Noise Reduction   : Off
0x004b Panasonic Image Width           : 4000
0x004c Panasonic Image Height          : 3000
0x004d AF Point Position               : 0.67 0.5
0x0000 Num Face Positions              : 0
0x0051 Lens Type                       : LUMIX G VARIO 12-32/F3.5-5.6
0x0052 Lens Serial Number              : 16FX2189612B
0x0053 Accessory Type                  : NO-ACCESSORY
0x0054 Accessory Serial Number         : 0000000
0x005d Intelligent Exposure            : Standard
0x0060 Lens Firmware Version           : 0.1.1.0
0x0000 Faces Recognized                : 0
0x8000 Maker Note Version              : 0132
0x8001 Scene Mode                      : Off
0x8007 Flash Fired                     : No
0xa000 Flashpix Version                : 0100
0xa001 Color Space                     : sRGB
0xa002 Exif Image Width                : 1920
0xa003 Exif Image Height               : 1440
0x0001 Interoperability Index          : R98 - DCF basic file (sRGB)
0x0002 Interoperability Version        : 0100
0xa217 Sensing Method                  : One-chip color area
0xa301 Scene Type                      : Directly photographed
0xa401 Custom Rendered                 : Normal
0xa402 Exposure Mode                   : Auto
0xa404 Digital Zoom Ratio              : 0
0xa405 Focal Length In 35mm Format     : 24 mm
0xa406 Scene Capture Type              : Standard
0xa407 Gain Control                    : Low gain up
     - PrintIM Version                 : 0250
0x0103 Compression                     : JPEG (old-style)
0x0201 Thumbnail Offset                : 11776
0x0202 Thumbnail Length                : 3715
     - Encoding Process                : Baseline DCT, Huffman coding
     - Bits Per Sample                 : 8
     - Color Components                : 3
     - Y Cb Cr Sub Sampling            : YCbCr4:2:2 (2 1)
0x002e Jpg From Raw                    : (Binary data 518656 bytes, use -b option to extract)
0x010f Make                            : Panasonic
0x0110 Camera Model Name               : DMC-GF1
0x0111 Strip Offsets                   : 4294967295
0x0112 Orientation                     : Horizontal (normal)
0x0116 Rows Per Strip                  : 3016
0x0117 Strip Byte Counts               : 0
0x0118 Raw Data Offset                 : 520704
0x0002 Distortion Param 02             : 0.00225830078125
0x0004 Distortion Param 04             : -0.013153076171875
0x0005 Distortion Scale                : 1.00097751710655
0x0007 Distortion Correction           : On
0x0008 Distortion Param 08             : 0.116607666015625
0x0009 Distortion Param 09             : 0.013916015625
0x000b Distortion Param 11             : -0.00421142578125
0x829a Exposure Time                   : 1/400
0x829d F Number                        : 7.1
0x8822 Exposure Program                : Program AE
0x9000 Exif Version                    : 0221
0x9003 Date/Time Original              : 2019:03:16 17:47:42
0x9004 Create Date                     : 2019:03:16 17:47:42
0x9204 Exposure Compensation           : +0.66
0x9205 Max Aperture Value              : 3.5
0x9207 Metering Mode                   : Center-weighted average
0x9209 Flash                           : Off, Did not fire
0x920a Focal Length                    : 12.0 mm
0xa300 File Source                     : Digital Camera
     - Advanced Scene Mode             : Off
     - Aperture                        : 7.1
     - Blue Balance                    : 1.475285
     - Image Height                    : 3000
     - Image Width                     : 4000
     - Lens ID                         : LUMIX G VARIO 12-32mm F3.5-5.6
     - Red Balance                     : 1.969582
     - Scale Factor To 35 mm Equivalent: 2.0
     - Shutter Speed                   : 1/400
     - Thumbnail Image                 : (Binary data 3715 bytes, use -b option to extract)
     - Circle Of Confusion             : 0.015 mm
     - Field Of View                   : 73.7 deg
     - Focal Length                    : 12.0 mm (35 mm equivalent: 24.0 mm)
     - Hyperfocal Distance             : 1.35 m
     - Image Size                      : 4000x3000
     - Light Value                     : 13.6
     - Megapixels                      : 12.0
 
Joined
Jul 13, 2020
Messages
435
Location
Hoher Fläming, Germany
Real Name
Phill
I don't know about Panasonic (I think on Olympus there is not such an option), but on Fujifilm cameras there are some jpeg settings which can manipulate ISO settings, however you need to have Auto-ISO enabled in order to make them. They don't work if you force a fixed ISO value.
 

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