Documentation

The ExIf35 XMP Namespace
December 29, 2016
----------------------------

Abstract

The ExIf35 namespace is the XMP namespace used by ExIf5 and its digital still
camera counterpart, ExIfDSC. The namespace is primarily used to store values to
an image file that is from a film camera, where exif and existing XMP 
namespaces do not provide. 

Discussion

The namespace idenfier "ExIf35" was selected because it is not a generic term, 
and can not be easily confused with other namespaces (not even XMP exif, which 
uses lowercase "exif"). The namespace "Film" was considered briefly, but it was
decided that using that namespace would potentially conflict with other spaces,
since there is no mechanism for centrally registering XMP namespaces. 

Fields
	ExIf 35 utilizes the following fields

	Roll 
		[Integer]
		Roll idenficiation number
	
	RollLoadDate
		[DateTime]
		Date and time the film was loaded into the camera (initial load)
		
	RollUnloadDate
		[DateTime]
		Date and time the film was unloaded from the camera (final unload)
		
	FilmUniqueID
		[String]
		Unique ID for roll, does not have to be numeric
		
	Film
		[String]
		Type of film image is recorded on
		
	DevelopSolution
		[String]
		Name of developer solution used

	DevelopDuration
		[String]
		String of time (mm:ss) format for time film spent in developer bath
		
	DevelopDate
		[String]
		*Must be in exif date notation (YYYY:MM:DD)
		Date the roll was developed
		
	DevelopmentTemperature
		[String]
		Temperature in degrees celsius at which the film was developed. 
		
	ExposureNumber
		[Integer]
		Frame number on roll. 
		
	SourceFileName	
		[String]
		File name and extension of original source file
		
	FileSource
		[String]  {Digital Still Camera, Film Scanner, Reflected Image Scanner}
		*Input must adhere to ExIf 0xA300 options
		String representation of ExIf 0xA300 file source
		
	CameraType
		[String] {Film SLR, Film PNS, Film Instant}
		Value representing the image capture device type. Used primarily to
		distinguish film photos from digital captures
		
	Filter
		[String]
		Name/type of filter in use
		
	ExposureMode
		[String] {Auto, Manual, Auto Bracket, Continuous, Self-Timer}
		*Input must be from exif 0xA402, or additional options provided
		Text representation of the exposure/release mode used
	
	FocusMode
		[String] {AF-S, AF-C, AF-A, M}
		*Input must be selected from available options
		
	VibrationReduction
		[Boolean]
		Was vibration reduction used for this frame? (True/False)

	Remarks
		[String]
		User remarks regarding the technical aspects of the photo, or subject notes