Tether Display is an application for convenient viewing of photos during tethering. Thanks to it, you can easily display the current photo while shooting. The last few photos are shown on a different monitor or device. It enables to viewing photos by people involved in sessions on other devices in the same LAN (e.g. connected to the same Wi-Fi).
Tether Display is built from two modules: application server and web application for viewing photos.
The application server is part of the program that reads the photos from the photos directory and makes them available through the web application for viewing.
The web application displays photos and connects to the server, displays the latest photos by setting them as active in its view.
The application during work generates temporary image files in various resolutions suitable for devices on which currently are browsed. For example, for 500 photos viewed on two devices (computer and tablet) the required free space on the disk is 4GB.
If you are using a different firewall than the standard Windows firewall, unblock these two applications:
Tether Display requires an external program that transfers images from the camera to a computer. For this you can use Canon EOS Utility (Canon camera support) or digiCamControl (support for Canon, Nikon, Sony cameras).
Use the following instructions to see how to connect and configure the camera with these programs:
These settings are only available from the computer where Tether Display is installed. Other devices on which the preview is open can not change these settings. You can read more about the application settings here.
That's all, the application is running and will display photos that will appear in the set directory.
Now you can open in web browser photo preview page on other devices that are on the same LAN as your computer by opening the web address which you will find in the control panel.
Read about interface description and configuration options.
The Tether Display control panel is used to start and stop the application server.
Description of window elements:
Start Tether Display server - starts the server service. After starting the server, this button is used to stop it. Closing the control panel window does not stop the server. It is always recommended to stop the server after the work is finished. The server will also be stopped automatically after restarting the computer.
Open Tether Display preview in your browser - opens the default browser with photo preview. On the computer desktop you will find shortcuts that you can also launch the preview by directly selecting the type of view.
Preview address for devices on the same network - you can open a preview page on devices that are on the same network as the computer. Use any web browser by entering the address in it.
This is a web application for viewing photos. It is launched in the web browser at http://localhost address from the computer where Tether Display is installed. On other devices from the same network (e.g. Wi-Fi) the address provided in the Tether Display control panel.
A - upper bar with setting buttons and full screen button
B - area displaying a photo or photos
C - the bottom bar, depending on the type of view selected, displays, for example, details of the photo
View - choosing the type of view (one photo or multiple photos).
View settings - settings of the current view. Changing these settings will apply only to the current tab in the browser on which the preview was opened.
Application settings - main application settings. This button is only available from the computer on which the Tether Display is installed.
Full screen button - button for switching the browser to full screen mode and back.
Double clicking on the photo will display it on all other devices on which the preview is open. This feature is especially useful when you want to pay attention to the selected photo to others viewers.
Holding the right mouse button down or touching and holding (on mobile devices) in the photo it will be zoomed in.
Below are descriptions of particular types of views.
This view displays a single photo with the necessary details:
By default, it is displayed in the upper left corner. You can change its position using the button or hide it by clicking on . The histogram can be displayed in one of three variants (set in the application settings):
Overexposed parts of image
By default, the application highlights the overexposed parts of the image in red.
You can disable this function by clicking or using the O keyboard shortcut. You can change the overexposed threshold in the application settings.
Details about the photo are displayed at the very bottom. From the left: focal length, shutter speed, aperture value, ISO value, resolution, name of the photo, number of the active photo and the number of all images.
This view displays several photos arranged side by side.
Depending on the settings that you can change in the application settings or in the view settings, this view can display the most recent photo on the right or left side of the screen and arrange it from left to right or vice versa.
In addition, in this view you can set the penultimate photo as active. This option is useful when you use multiple monitors or devices. For example, one monitor displays single photo view, and the next multiple photoss view. The new photo will be set to be active in the single photo view, and in the multiple photoss active will be the last but one. This way, monitors or devices do not display the same image twice.
See the picture below, the monitor on the right shows the current photo and on the left three previous ones.
Path to photos directory - directory path from which Tether Display will lad photos.
The application only reads files in JPG format. You can enter any directory that contains photos in JPG format and browse through Tether Display.
Sharpness level - additional sharpening that will be applied to the displayed photos.
As the author of the application and a beauty photographer, I prefer sharpening photos while watching them when they are unretouched. You can turn off sharpening by entering the value 0 in this field.
Clear photo cache - the application during work generates temporary image files in various resolutions suitable for devices on which currently are browsed. For example, for 500 photos (from camera with 26mpx) viewed on two devices (computer and tablet) the required free space on the disk is 4GB. These files are automatically deleted when Path to photos directory is changed to another one or you can clear them at any time by clicking this button.
Language - app language
Default views settings - in this section there are settings that will be used as the default for both views (single photo and multiple photos).
Sync photo activity from other tabs on this device - When the application is open in at least two tabs on one device, changing active photo in one also changes in the one that has this option enabled. In short, when you open two tabs and you change the photos with the arrows (previous and next), the second tab will also change.
Default settings for single photo view and Default settings for multiple photos view are described in the section with descriptions of views.
The use of the Tether Display application requires a license. For details, write to me: firstname.lastname@example.org