Exif

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Exif

Exchangeable image file format - Wikipedia, the free encyclopedia

"Exchangeable image file format (officially Exif, not EXIF according to JEIDA/JEITA/CIPA specifications) is a standard that specifies the formats for images, sound, and ancillary tags used by digital cameras (including smartphones), scanners and other systems handling image and sound files recorded by digital cameras. The specification uses the following existing file formats with the addition of specific metadata tags: JPEG discrete cosine transform (DCT) for compressed image files, TIFF Rev. 6.0 (RGB or YCbCr) for uncompressed image files, and RIFF WAV for audio files (Linear PCM or ITU-T G.711 μ-Law PCM for uncompressed audio data, and IMA-ADPCM for compressed audio data). It is not supported in JPEG 2000, PNG, or GIF." [1]

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More on Exif at

jhead

jhead - Exif Jpeg header manipulation tool

See jhead

Sample

Favorites:

  • Make - Canon
  • Model - Canon EOS REBEL T3i
  • Orientation - Top left
  • XResolution - 72 # dpi
  • YResolution - 72 # dpi
  • ResolutionUnit - Inch # dpi
  • ExposureTime - 1/800 seconds
  • FNumber - 3.50
  • ExposureProgram - Aperture priority
  • ISOSpeedRatings - 100
  • ShutterSpeedValue - 1/790 seconds
  • ApertureValue - F 3.51
  • FocalLength - 18 mm
  • ExposureMode - Auto
  • White Balance - Auto
  • Focal length - 18 - 55 mm (1 mm)

Orientation:

  • Top left - normal landscape (looking at front of camera, left top is up)
  • Left bottom - portrait (looking at front of camera, left bottom is up)

ExposureProgram:

  • Normal program
  • Aperture priority

Aperture priority:

Filename - IMG_1073.JPG
Make - Canon
Model - Canon EOS REBEL T3i
Orientation - Top left
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
DateTime - 2012:10:30 13:40:31
Artist - 
YCbCrPositioning - Co-Sited
Copyright - 
ExifOffset - 348
ExposureTime - 1/800 seconds
FNumber - 3.50
ExposureProgram - Aperture priority
ISOSpeedRatings - 100
ExifVersion - 0230
DateTimeOriginal - 2012:10:30 13:40:31
DateTimeDigitized - 2012:10:30 13:40:31
ComponentsConfiguration - YCbCr
ShutterSpeedValue - 1/790 seconds
ApertureValue - F 3.51
ExposureBiasValue - 0
MeteringMode - Multi-segment
Flash - Flash not fired, compulsory flash mode
FocalLength - 18 mm
UserComment - 
SubsecTime - 00
SubsecTimeOriginal - 00
SubsecTimeDigitized - 00
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 3456
ExifImageHeight - 5184
InteroperabilityOffset - 8598
FocalPlaneXResolution - 5728.18
FocalPlaneYResolution - 5808.40
FocalPlaneResolutionUnit - Inch
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
SceneCaptureType - Standard

Maker Note (Vendor): - 
Macro mode - Normal
Self timer - Off
Quality - Fine
Flash mode - Not fired
Sequence mode - Single or Timer
Focus mode - One-Shot
Image size - Large
Easy shooting mode - Manual
Digital zoom - None
Contrast - Normal
Saturation - Normal
Sharpness - Low , -32769
ISO Value - Auto
Metering mode - Evaluative
Focus type - Auto
AF point selected - 
Exposure mode - Av-priority
Focal length - 18 - 55 mm (1 mm)
Flash activity - Not fired
Flash details - 
Focus mode 2 - 65535
Auto ISO - 100
Base ISO - 100
White Balance - Auto
Sequence number - 0
Flash bias - 0 EV
Subject Distance - 0.00
Image Type - Canon EOS REBEL T3i
Firmware Version - Firmware Version 1.0.2
Owner Name - 
Sharpness (EOS 1D) - 0
Directory index (EOS 450D) - 720
File index (EOS 450D) - 1
File number - 000 - 0000
Sharpness (A0) - 3

Thumbnail: - 
Compression - 6 (JPG)
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
JpegIFOffset - 8916
JpegIFByteCount - 15568

Full Auto:

Filename - IMG_1074.JPG
Make - Canon
Model - Canon EOS REBEL T3i
Orientation - Left bottom
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
DateTime - 2012:10:30 13:40:41
Artist - 
YCbCrPositioning - Co-Sited
Copyright - 
ExifOffset - 348
ExposureTime - 1/200 seconds
FNumber - 8
ExposureProgram - Normal program
ISOSpeedRatings - 100
ExifVersion - 0230
DateTimeOriginal - 2012:10:30 13:40:41
DateTimeDigitized - 2012:10:30 13:40:41
ComponentsConfiguration - YCbCr
ShutterSpeedValue - 1/197 seconds
ApertureValue - F 8.00
ExposureBiasValue - 0
MeteringMode - Multi-segment
Flash - Flash not fired, compulsory flash mode
FocalLength - 18 mm
UserComment - 
SubsecTime - 00
SubsecTimeOriginal - 00
SubsecTimeDigitized - 00
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 5184
ExifImageHeight - 3456
InteroperabilityOffset - 8598
FocalPlaneXResolution - 5728.18
FocalPlaneYResolution - 5808.40
FocalPlaneResolutionUnit - Inch
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
SceneCaptureType - Standard

Maker Note (Vendor): - 
Macro mode - Normal
Self timer - Off
Quality - Fine
Flash mode - Not fired
Sequence mode - Single or Timer
Focus mode - AI Focus
Image size - Large
Easy shooting mode - Full Auto
Digital zoom - None
Contrast - Normal
Saturation - Normal
Sharpness - Low , -32769
ISO Value - Auto
Metering mode - Evaluative
Focus type - Auto
AF point selected - 
Exposure mode - Easy shooting
Focal length - 18 - 55 mm (1 mm)
Flash activity - Not fired
Flash details - 
Focus mode 2 - 65535
Auto ISO - 100
Base ISO - 100
White Balance - Auto
Sequence number - 0
Flash bias - 0 EV
Subject Distance - 0.00
Image Type - Canon EOS REBEL T3i
Firmware Version - Firmware Version 1.0.2
Owner Name - 
Sharpness (EOS 1D) - 0
Directory index (EOS 450D) - 720
File index (EOS 450D) - 1
File number - 000 - 0000
Sharpness (A0) - 3

Thumbnail: - 
Compression - 6 (JPG)
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
JpegIFOffset - 8916
JpegIFByteCount - 15568

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