The Fujifilm XF Lens Roadmap hasn’t been updated since last year. Now rumors are about that they going to be producing a XF 8-16mm F/2.8 lens sometime this year. It makes sense to me as that completes the Pro series equivalents of constant F/2.8, 12-24mm, 24-70mm, and 70-200mm lens other manufacturers offer. For night sky photography wide angle fast glass is the way to go. Last night I dashed outside to capture a few images of Orion and the surrounding stars. I used my XF 10-24mm F/4 R OIS lens and I really did wish I had that extra stop of aperture. At F4 i had to keep the shutter open for 20 seconds at ISO 1600. You may not notice it (in fact you may not see many stars in the small image presented but click on the image for a larger image) but there is definite movement at that shutter speed. With a lens the opens to F/2.8 I would have been able to cut the exposure time down to 10 seconds and it probably would have made a difference in the sharpness of the image.
It’s nice to live in Florida where even in Winter you can have a clear night with temperatures not too cold.