When I attempt to apply a lens profile in the Develop module the only choices are for the Fujifilm X100/S/T even though in the Library module the EXIF data correctly shows the camera as the X-T1 and the precise lens used to take the picture. How do I get

Question

When I attempt to apply a lens profile in the Develop module the only choices are for the Fujifilm X100/S/T even though in the Library module the EXIF data correctly shows the camera as the X-T1 and the precise lens used to take the picture. How do I get the right profile available?

Answer 1

First, the required profile needs to be present. LR 5.4 supports the X-T1 in terms of understanding its Raw format, but will not come with a profile for every lens which can be mounted onto that.
A profile is made for each specific lens, as mounted on a certain camera. It can also be used with pictures taken on a different (reasonably similar) camera body than the one originally used during profiling. This is subject to the sensor format: you can employ a given lens profile made for full frame, on an image from a crop sensor behind the same lens - but not vice versa.
Next, the image type needs to correspond to the image type which has been built into the profile: Raw, or non-Raw.
Lightroom offers only profiles of the right type for the image(s) concerned. There are many more provided for correcting camera Raw, than for correcting camera JPG. That is also the case with additional profiles, e.g. those accessed via the Adobe lens profile downloader utility.
Finally, in the event that there simply is no profile out there for a given lens, it is not particularly difficult (though a little tedious) for the end user to generate one, using a further Adobe utility which is downloadable as a package, including a range of checkerboard calibration targets, each of which needs to be printed at a stated physical size.