By connecting the flash to your computer with the Sigma FD-11 Flash USB Dock, you can update the flash firmware using Sigma Optimization Pro Software. This allows you to plug your flash in via a USB connection and install firmware updates for enhanced functionality and compatibility.
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.