Tethered test image - "Free Trapper" bronze by Keith Christie
Tethering the Fujifilm X-T2
Historically, tethering the Fujifilm X-T1 and X-T2 has been a painful experience. You had a choice of using Fujifilm's HS-V5 software, which was unpopular, or using Adobe Lightroom, which was painfully slow. To tether in Lightroom you need to purchase a plug-in from Fujifilm through the Adobe plug-in site (https://creative.adobe.com/addons/search?q=fujifilm). Not as easy or economical as just hooking up a late model Canikon to your computer and blasting away because Lightroom supported those manufacturers out of the box. If you were a Capture One user...forget about it, C1 would read Fuji files, but would not tether Fujifilm cameras.
As of April 2017, the situation has improved. Lightroom's tethering speed of Fujifilm files is better and Capture One can be made to work. Historically, Lightroom's tethering speed of Fujifilm files was poor, taking about ten seconds to transfer a file and display it. With the current release, the average transfer speed, from shutter trigger to displayed imaged on a 2014 Macbook Pro was three seconds. Lossless compressed raw files were about a quarter of a second (.25) faster, transferring and displaying in 2.75 seconds. Those are very usable speeds.
For Capture One users (and other software that can monitor a hot folder), Fujifilm has released a little piece of software called X-Acquire (http://www.fujifilm.com/news/n170222_04.html). Available on both Windows and Macintosh platforms, X-Acquire does one task very well, it transfers files from the X-T1, X-T2, and GFX cameras to a computer. It works fast, on the MBP using a USB3 cable, X-Acquire transferred uncompressed 50 megabyte raw files from an X-T2 in about 2.5 seconds (displayed in Finder). If you configure Capture One to use a hot folder, the average time from shutter release to an imported and displayed image in Capture One was 3.3 seconds (currently uncompressed RAW files only). Again, a usable solution.
Hooray! The ability to use Capture One for tethering the X-T2 is important to those of us that use it in the studio.
I set the X-T2 upon a tripod and manually focused on a static scene. Leaving the camera in full manual (no autofocus, no autoexposure) while tethered to the Macbook Pro, I triggered ten individual shots, timing each shot with a stopwatch. The stopwatch was started at the same time as the shutter was triggered and stopped when the image would display on the computer. There was human variation in the start/stop, so the numbers are not exact.