TAMRON Lens UtilityTM Online Help

A-B Focus

You can shift the focus back and forth between two preset focus positions that have been recorded beforehand.

For example, when shooting video, you can change the focus position within the frame at a designated speed to create a powerful visual transition. This feature is useful for various creative shooting situations.

* Click for TAMRON Lens Utility Compatible Lens List >>

How to set up


Click [Custom Switch Setting] or [Focus Set Button Setting] shown at the top-left of the home screen.

* [Custom Switch Setting] or [Focus Set Button Setting] will be displayed depending on the lens.

* Check Function List >>

* Download the TAMRON Lens Utility >>

* Check how to Connect/Disconnect Lens and Computer >>


On the [Custom Switch Setting] or [Focus Set Button Setting] screen, click [Select].


From the selection screen, click [Select] for [A-B Focus].

* Depending on the lens, functions apearing on the screen will differ. Check the list to find capability of your lens.
TAMRON Lens Utility Compatible Lens List >>


The focus travel time setting screen is displayed. When recording video, the [Travel Time] and [Delay Time] to desired focus pojition can be selected. Then click [Save] to complete the setting process.

* You can return to the previous screen by clicking the [Return] button.

* You can set the focus travel time when shooting video. When you are shooting still photos, you cannot change the travel time. The focus will automatically shift to focus point at once.

*Set the delay time to start the action on the delay setting screen. (Movie mode only)

How to use

How to shoot automatic "pull focus", a technique in video shooting that changes the focus position within the frame.

* A-B Focus is easier and more accurate if you use a tripod to secure the camera position in place.

Note: When you cannot change the focus mode to AF

If the focus mode cannot be selected from the camera body, press the [Focus Set Button] to return to AF mode.