TAMRON Lens UtilityTM Online Help
Astro Focus Lock (Astro FC-L)
Focal Point will automatically be fixed at infinity and will ease you from finding the focus point for astrophotography.
* The focus ring will be disabled until Astro FC-L is released to prevent focus deviation due to incorrect operation.
* 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.
* Download the TAMRON Lens Utility >>
On the [Custom Switch Setting] or [Focus Set Button Setting] screen, click [Select].
From the selection screen, click [Select] for [Astro FC-L].
* 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 >>
Select [Press] or [Hold (1 sec.)]. Then click [Save] to complete the setting process.
* You can return to the previous screen by clicking the [Return] button.
* How to release setting
By following the same method used when you activated the function, [Press] or [Hold (1 sec.)], the [Astro FC-L] will be deactivated and focus will be free.
