Phillip Reeve [Tested on Sony variant]
I really liked being able to capture such a wide field of view with such a tiny lens. The resolution is already quite good in most parts of the frame at f/2.8 and stopped down to f/8.0 it is offers a very even across frame performance. [...] The biggest downside of this lens is probably the flare resistance. [...] Nevertheless this lens can be a nice addition to many APS-C kits.
[Tested on Sony variant]
The Laowa lenses as a range are certainly very interesting [...] Traditional metal construction does mean a higher price, but we have to choose whether the trade-off of quality of results balances out the cost/performance equation. This will obviously be different for different users.
What we get is the widest lens in its class, with a fast, bright f/2.8 aperture, that performs very well indeed.
[Tested on Fuji variant]
It's super-sharp in the image center and if you avoid f/2.8 the borders/corners are decent. Lateral CAs are generally not an issue. Image distortions are extremely low for a lens of this focal length. The primary weakness is vignetting which is rather extreme at max aperture, at medium aperture settings, it's a lesser issue. Flare in strong contra-light can produce quite a bit of glare. All-metal construction and tight control rings.