TTNview - a simple EXIF information viewer
March 29, 2003 - Version 0.4.31 Alpha
Features | What's new | What's next
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What is TTNview?
TTNview is a simple viewer of EXIF information recorded by digital cameras in image files.
This normally includes various information about image and shooting conditions, as well as data about the camera and settings.
|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 the text 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 can navigate directories and open files using their standard Windows associations.
In future, we plan TTNview to be able to do the following:
TTNview is free.
TTNview is built in accordance with EXIF 2.1. It will support EXIF 2.2 and maybe JFIF in its future releases.
We wrote TTNview for fun. It is a nice programming practice and a lot of pleasure. In addition to its primary goal - showing EXIF information - we want to use TTNview as a platform for testing different programming techniques and usability ideas.
We want to make TTNview the fastest possible image analyzer and we'll optimize any place where we see optimization possible.
TTNview is also planned to be very usable, though laconic in its GUI. It is going to be simple and understandable. We will develop it in tight conformance with Windows GUI standards and we'll conduct usability tests. The viewer supports and will support mouse users as well as keyboard users.
Features and advantages
Current version is 0.4.31 alpha
Download TTNview (88KB)
Version 0.3.24 alpha
Version 0.2.17 alpha
Version 0.1.9 alpha (first launch)
Click here for user's guide.
We created a mailing list on Yahoo! Groups to discuss & support TTNview.
Subscribe to the list to receive updates and announcements about TTNview, to say what you think about TTNview and to discuss what others think about it.
Subscribing is as easy as sending an email to firstname.lastname@example.org. You will get a verification email to confirm the subscription. If you confirm by email, you don't even need a Yahoo! ID to use the mailing list.
If you have troubles with the mailing list, send an email to us directly.
New in this version
We're currently working on showing thumbnail images
Let us know which features you would like to see first of all!
Please write to our email about any issue you find. We are particularly interested in