---
title: EXIF Dictionary Keys
framework: imageio
role: collectionGroup
role_heading: API Collection
path: imageio/exif-dictionary-keys
---

# EXIF Dictionary Keys

Metadata keys for Exchangeable Image File Format (EXIF) data.

## Topics

### Dictionaries

- [kCGImagePropertyExifDictionary](imageio/kcgimagepropertyexifdictionary.md)
- [kCGImagePropertyExifAuxDictionary](imageio/kcgimagepropertyexifauxdictionary.md)

### Camera Settings

- [kCGImagePropertyExifDeviceSettingDescription](imageio/kcgimagepropertyexifdevicesettingdescription.md)
- [kCGImagePropertyExifFNumber](imageio/kcgimagepropertyexiffnumber.md)
- [kCGImagePropertyExifShutterSpeedValue](imageio/kcgimagepropertyexifshutterspeedvalue.md)
- [kCGImagePropertyExifApertureValue](imageio/kcgimagepropertyexifaperturevalue.md)
- [kCGImagePropertyExifMaxApertureValue](imageio/kcgimagepropertyexifmaxaperturevalue.md)
- [kCGImagePropertyExifFocalLength](imageio/kcgimagepropertyexiffocallength.md)
- [kCGImagePropertyExifSpectralSensitivity](imageio/kcgimagepropertyexifspectralsensitivity.md)
- [kCGImagePropertyExifISOSpeedRatings](imageio/kcgimagepropertyexifisospeedratings.md)
- [kCGImagePropertyExifSubjectDistance](imageio/kcgimagepropertyexifsubjectdistance.md)
- [kCGImagePropertyExifMeteringMode](imageio/kcgimagepropertyexifmeteringmode.md)
- [kCGImagePropertyExifSubjectArea](imageio/kcgimagepropertyexifsubjectarea.md)
- [kCGImagePropertyExifSubjectLocation](imageio/kcgimagepropertyexifsubjectlocation.md)
- [kCGImagePropertyExifSensingMethod](imageio/kcgimagepropertyexifsensingmethod.md)
- [kCGImagePropertyExifSceneType](imageio/kcgimagepropertyexifscenetype.md)
- [kCGImagePropertyExifDigitalZoomRatio](imageio/kcgimagepropertyexifdigitalzoomratio.md)
- [kCGImagePropertyExifFocalLenIn35mmFilm](imageio/kcgimagepropertyexiffocallenin35mmfilm.md)
- [kCGImagePropertyExifSceneCaptureType](imageio/kcgimagepropertyexifscenecapturetype.md)
- [kCGImagePropertyExifSubjectDistRange](imageio/kcgimagepropertyexifsubjectdistrange.md)

### Exposure

- [kCGImagePropertyExifExposureTime](imageio/kcgimagepropertyexifexposuretime.md)
- [kCGImagePropertyExifExposureProgram](imageio/kcgimagepropertyexifexposureprogram.md)
- [kCGImagePropertyExifExposureIndex](imageio/kcgimagepropertyexifexposureindex.md)
- [kCGImagePropertyExifExposureMode](imageio/kcgimagepropertyexifexposuremode.md)
- [kCGImagePropertyExifISOSpeed](imageio/kcgimagepropertyexifisospeed.md)
- [kCGImagePropertyExifISOSpeedLatitudeyyy](imageio/kcgimagepropertyexifisospeedlatitudeyyy.md)
- [kCGImagePropertyExifISOSpeedLatitudezzz](imageio/kcgimagepropertyexifisospeedlatitudezzz.md)
- [kCGImagePropertyExifRecommendedExposureIndex](imageio/kcgimagepropertyexifrecommendedexposureindex.md)
- [kCGImagePropertyExifExposureBiasValue](imageio/kcgimagepropertyexifexposurebiasvalue.md)
- [kCGImagePropertyExifSensitivityType](imageio/kcgimagepropertyexifsensitivitytype.md)
- [kCGImagePropertyExifStandardOutputSensitivity](imageio/kcgimagepropertyexifstandardoutputsensitivity.md)
- [kCGImagePropertyExifSourceExposureTimesOfCompositeImage](imageio/kcgimagepropertyexifsourceexposuretimesofcompositeimage.md)

### Image Quality

- [kCGImagePropertyExifCFAPattern](imageio/kcgimagepropertyexifcfapattern.md)
- [kCGImagePropertyExifBrightnessValue](imageio/kcgimagepropertyexifbrightnessvalue.md)
- [kCGImagePropertyExifLightSource](imageio/kcgimagepropertyexiflightsource.md)
- [kCGImagePropertyExifFlash](imageio/kcgimagepropertyexifflash.md)
- [kCGImagePropertyExifSpatialFrequencyResponse](imageio/kcgimagepropertyexifspatialfrequencyresponse.md)
- [kCGImagePropertyExifContrast](imageio/kcgimagepropertyexifcontrast.md)
- [kCGImagePropertyExifSaturation](imageio/kcgimagepropertyexifsaturation.md)
- [kCGImagePropertyExifSharpness](imageio/kcgimagepropertyexifsharpness.md)
- [kCGImagePropertyExifGamma](imageio/kcgimagepropertyexifgamma.md)
- [kCGImagePropertyExifWhiteBalance](imageio/kcgimagepropertyexifwhitebalance.md)

### Image Settings

- [kCGImagePropertyExifGainControl](imageio/kcgimagepropertyexifgaincontrol.md)
- [kCGImagePropertyExifImageUniqueID](imageio/kcgimagepropertyexifimageuniqueid.md)
- [kCGImagePropertyExifCompressedBitsPerPixel](imageio/kcgimagepropertyexifcompressedbitsperpixel.md)
- [kCGImagePropertyExifColorSpace](imageio/kcgimagepropertyexifcolorspace.md)
- [kCGImagePropertyExifPixelXDimension](imageio/kcgimagepropertyexifpixelxdimension.md)
- [kCGImagePropertyExifPixelYDimension](imageio/kcgimagepropertyexifpixelydimension.md)
- [kCGImagePropertyExifRelatedSoundFile](imageio/kcgimagepropertyexifrelatedsoundfile.md)
- [kCGImagePropertyExifFocalPlaneXResolution](imageio/kcgimagepropertyexiffocalplanexresolution.md)
- [kCGImagePropertyExifFocalPlaneYResolution](imageio/kcgimagepropertyexiffocalplaneyresolution.md)
- [kCGImagePropertyExifFocalPlaneResolutionUnit](imageio/kcgimagepropertyexiffocalplaneresolutionunit.md)
- [kCGImagePropertyExifCustomRendered](imageio/kcgimagepropertyexifcustomrendered.md)
- [kCGImagePropertyExifCompositeImage](imageio/kcgimagepropertyexifcompositeimage.md)
- [kCGImagePropertyExifOECF](imageio/kcgimagepropertyexifoecf.md)
- [kCGImagePropertyExifComponentsConfiguration](imageio/kcgimagepropertyexifcomponentsconfiguration.md)
- [kCGImagePropertyExifSourceImageNumberOfCompositeImage](imageio/kcgimagepropertyexifsourceimagenumberofcompositeimage.md)
- [kCGImagePropertyExifFileSource](imageio/kcgimagepropertyexiffilesource.md)

### Timestamp

- [kCGImagePropertyExifDateTimeOriginal](imageio/kcgimagepropertyexifdatetimeoriginal.md)
- [kCGImagePropertyExifDateTimeDigitized](imageio/kcgimagepropertyexifdatetimedigitized.md)
- [kCGImagePropertyExifSubsecTime](imageio/kcgimagepropertyexifsubsectime.md)
- [kCGImagePropertyExifSubsecTimeOrginal](imageio/kcgimagepropertyexifsubsectimeorginal.md)
- [kCGImagePropertyExifSubsecTimeOriginal](imageio/kcgimagepropertyexifsubsectimeoriginal.md)
- [kCGImagePropertyExifSubsecTimeDigitized](imageio/kcgimagepropertyexifsubsectimedigitized.md)
- [kCGImagePropertyExifOffsetTime](imageio/kcgimagepropertyexifoffsettime.md)
- [kCGImagePropertyExifOffsetTimeOriginal](imageio/kcgimagepropertyexifoffsettimeoriginal.md)
- [kCGImagePropertyExifOffsetTimeDigitized](imageio/kcgimagepropertyexifoffsettimedigitized.md)

### Lens Information

- [kCGImagePropertyExifLensSpecification](imageio/kcgimagepropertyexiflensspecification.md)
- [kCGImagePropertyExifLensMake](imageio/kcgimagepropertyexiflensmake.md)
- [kCGImagePropertyExifLensModel](imageio/kcgimagepropertyexiflensmodel.md)
- [kCGImagePropertyExifLensSerialNumber](imageio/kcgimagepropertyexiflensserialnumber.md)

### Camera Information

- [kCGImagePropertyExifMakerNote](imageio/kcgimagepropertyexifmakernote.md)
- [kCGImagePropertyExifUserComment](imageio/kcgimagepropertyexifusercomment.md)
- [kCGImagePropertyExifCameraOwnerName](imageio/kcgimagepropertyexifcameraownername.md)
- [kCGImagePropertyExifBodySerialNumber](imageio/kcgimagepropertyexifbodyserialnumber.md)

### Flash Information

- [kCGImagePropertyExifFlashPixVersion](imageio/kcgimagepropertyexifflashpixversion.md)
- [kCGImagePropertyExifFlashEnergy](imageio/kcgimagepropertyexifflashenergy.md)

### Auxiliary Keys

- [kCGImagePropertyExifAuxLensInfo](imageio/kcgimagepropertyexifauxlensinfo.md)
- [kCGImagePropertyExifAuxLensModel](imageio/kcgimagepropertyexifauxlensmodel.md)
- [kCGImagePropertyExifAuxSerialNumber](imageio/kcgimagepropertyexifauxserialnumber.md)
- [kCGImagePropertyExifAuxLensID](imageio/kcgimagepropertyexifauxlensid.md)
- [kCGImagePropertyExifAuxLensSerialNumber](imageio/kcgimagepropertyexifauxlensserialnumber.md)
- [kCGImagePropertyExifAuxImageNumber](imageio/kcgimagepropertyexifauximagenumber.md)
- [kCGImagePropertyExifAuxFlashCompensation](imageio/kcgimagepropertyexifauxflashcompensation.md)
- [kCGImagePropertyExifAuxOwnerName](imageio/kcgimagepropertyexifauxownername.md)
- [kCGImagePropertyExifAuxFirmware](imageio/kcgimagepropertyexifauxfirmware.md)

### EXIF Format

- [kCGImagePropertyExifVersion](imageio/kcgimagepropertyexifversion.md)

## See Also

### Common Image Properties

- [Image Properties](imageio/image-properties.md)
- [IPTC Dictionary Keys](imageio/iptc-dictionary-keys.md)
- [GPS Dictionary Keys](imageio/gps-dictionary-keys.md)
- [WebP Data](imageio/webp-data.md)