You can now update firmware in selected Tamron lenses and customize various lens functions simply by attaching a Tamron TAP-in Console and running the Tamron TAP-in Utility software. Using the new accessory and an internet connection, you can access a dedicated website and update firmware. In addition, selected lenses can be customized by changing settings to match your preferences. With a Tamron TAP-in Console, you can do the following things. • Update the firmware of compatible lenses • Customize functions of selected lenses - Focus adjustment - Focus distance limiter customization (only for lenses that have the Focus Limiter feature) - Full-time Manual Focus override customization (only for lenses that have the Full-time Manual Focus feature) - VC adjustment (only for any lenses with VC) - Save customized data files Download the free Tamron TAP-in Utility and install it on your Mac or PC. Updating firmware and customizing various lens functions is as easy as connecting the TAP-in Console with a USB cable and making selections. Compatible Tamron Lenses (As of February 2016) SP 85mm F/1.8 Di VC USD (Model F016) SP 90mm F/2.8 Di MACRO 1:1 VC USD (Model F017) SP 45mm F/1.8 Di VC USD (Model F013): Initial firmware update by Tamron service facility is required to enable compatibility with the TAP-in Console. SP 35mm F/1.8 Di VC USD (Model F012): Launched in September 2015 Initial firmware update by Tamron service facility is required to enable compatibility with the TAP-in Console. TAP-in Utility Operating Environment Windows Mac OS Windows 10 Windows 8, Windows 8.1 Windows 7 Mac OS X 10.10 - 10.11 CPU Core2Duo with 2.0 GHz or faster Intel processor RAM 1 GB or more 1 GB or more Hard Disk Drive Capacity 1 GB or more of available space 1 GB or more of available space Monitor Display Resolution 1024 × 768 pixels (XGA) or more 24-bit color or more 1024 × 768 pixels (XGA) or more 24-bit color or more Interface USB 2.0 as standard feature USB 2.0 as standard feature