Nisi 9mm f/2.8 Review by Christopher Frost

The Nisi 9mm f/2.8 lens for Fujifilm X mount has just been announced. You can see samples and specs in our dediacted launch article.

Now Christopher Frost shared his review about this lens (mounted on a Sony full frame camera).

Here is the summary of his video:

smooth focus and aperture ring
focus ring turns a little heavily and very precise for manual focusing
almost no focus breathing
67mm filter size is nice and unusual for such a wide angle lens. Use a slim filter with this lens to avoid to occur in vignetting
metal lens hood
lovely build quality
image quality
at f/2.8: excellent sharpness and contrast in the center and still quite some good detail in the corners. The very edges are soft
at f/4 corners quickly improve to become very impressive
at f/16 comes a bit of softness due to diffraction
at f/2.8 distortion isn’t too high with just moderate barrel distortion
at f/2.8 huge vignetting in the corners and they begin to brighten up at f/4
20 cm minimum focus distance and remains sharp at close distance
average amount of flaring although it is fairly transparent hence it should rarely cause any problems
coma smearing is absolutely minimal even at f/2.8 and what eventually is there is gone at f/4
some sunstar effect is visible even at f/2.8 and they become quickly nice and strong at f/4 and they get even better at f/8 and f/11
bokeh perhaps just a little nervous, but nothing too distracting
overall he is pretty impressed by how well this little lens performs