TTNview: User's Guide
Version 0.4.31 Alpha
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This user's guide is for the latest version of TTNview. You can download the latest version using the link below.
Download latest version of TTNview from http://myalpha.dls.net/ttnview
TTNview is a single executable file. After downloading, place it wherever you like on your hard disk. You can then create a shortcut to it in the start menu or on the desktop. Alternatively, you can put it into a directory contained in your PATH to be able to call it from Windows' Run dialogue just by typing "ttnview".
The directory where you place ttnview.exe must be allowed to write. Otherwise, TTNview will work, but will not be able to save column settings.
Run ttnview.exe from the directory where you placed it. TTNview will show the directory last viewed. TTNview will show an empty window when the last viewed directory is not available or when TTNview is running first time.
TTNview allows you to choose which columns to see. Currently, there are 25 columns to choose from. On first run, TTNview will display initial set of 10 columns including time and shooting conditions.
To choose columns:
After making changes in columns set, TTNview will re-read the current directory to fill the new set of columns.
Saving columns set
After you modify the set of columns to view, you can save this set to see it on next run of TTNview.
To save columns set,
TTNview writes a file with settings into the same directory where ttnview.exe resides. If the directory is not allowed to write, you'll get an error message.
If you don't save column settings, TTNview will prompt you to do so on exit.
Choosing directory to browse
Navigating directory tree
EXIF information presented
EXIF columns meaning is described below:
|Speed||Shutter speed, aka exposure time, seconds||Either a fraction of a second (like 1/250) or a number of seconds (like 2")|
|F-Stop||Aperture value, aka F-Stop||The value is the fraction of the Focus Length, e.g. value of 11 means the aperture was F/11|
|ISO||Camera sensor sensivity, in ISO units, similar to film sensivity||Some Nikon and Canon cameras use proprietary format for this setting. In files from those cameras, the value may be missing if they were processed by a software that only preserves standard tags|
|WB||White Balance setting aka Color Mode, aka Light Source Type, aka Color Temperature; Similar to kind of film (daylight, incandescent, etc).||Some cameras use proprietary format for this setting.
In addition to standard format, proprietary formats of this setting are currently analyzed for Canon, Nikon and Olympus cameras.
The actual value depends on how the manufacturer calls the respective setting
|Focal Length||Focal Length of the camera lens; For zoom lenses - the Focal Length used for this picture||The value is in millimeters. In this version, the value is not converted to 35mm equivalence|
|Flash||Flash - just "Fired" or "Not fired"||This does not depend on flash setting on camera (Auto/On/Off/Red-eye/Slow Sync, etc). For example, if the flash was set to ON, but was not fired because it was not fully charged, the value will be "Not fired".|
|Software||Name and/or version of the software that recorded this image||For unmodified digital camera files, this should be a version of camera's firmware (important when checking for upgrade availability)|
|EXIF Version||EXIF version|
|Camera settings for the shot|
|EV +/-||Automatic Exposure (AE) compensation, aka Exposure Bias. The value is a correction applied by the user to the exposure selected by the camera. The value is measured in photographic "steps" aka EV.||For example, +0.25 means a quarter of the step brighter, -1 means one step darker. "none" - no correction applied|
|AE Program||Automatic Exposure (AE) program. Some cameras just call it "Mode". Determines how the camera chooses the exposure (Program, Aperture Priority, Shutter Priority, Manual and the like)|
|Metering||Metering mode. Which part of the frame is used to measure the exposure: Average, Center-Weighted, Spot and the like|
|Information about the image|
|Date/Time||Date and time the image was recorded|
|Time Shot||Time when the picture was shot||This field is expected to be always preserved by processing software|
|Time Digitized||Time when the picture was digitized|
|User Comment||Comment recorded by user||EXIF supports user comments in many character sets; TTNview will only show user comment if it's in ASCII code.
TTNview will take the comment into the square brackets () in order to distinguish between missing comment and comment containing white spaces.
|File Source||File source; The value is either "digital camera" on nothing||Not all cameras write this value, therefore you can't rely on this setting to distinguish between original and scanned/processed image. Please check images from your particular camera.|
|Scene Type||Scene Type; The value is either "photographed" on nothing; "Photographed" is intended to designate that the scene was directly photographed||Not all cameras write this value, therefore you can't rely on this setting to distinguish between original and scanned/processed image. Please check images from your particular camera.|
|Height||Image height, in pixels|
|Width||Image width, in pixels|
|Res Unit||Unit in which X and Y resolution are measured||Either "inch" or "cm"|
|Res X||X Resolution, measured in pixels per Resolution Unit|
|Res Y||Y Resolution, measured in pixels per Resolution Unit|
TTNview writes a file with settings into the same directory where ttnview.exe resides. If the directory is not allowed to write, you'll get an error message. In this case, the only way to quit the program is to answer "No" to the question.