Here are some test images using the Samyang 18mm 2.8 FE lens from Samyang.
All of these were taken at night using a tripod at the lowest aperture on the lens, @2.8.
Overall this is one of Samyang’s latest addition that is auto-focus, in the beginning Samyang was known for their quality manual focussing lenses, either way I also use their 35mm 2.8 FE lens, buying these two lenses new is still a lot cheaper than buying just one from Sony.
As you can see from these test images the Samyang 18mm 2.8 FE handles low light images very well, these were all tested whilst using a sturdy Manfrotto tripod, ISO approx 100.
I can see this lens being great for any photographer that needs a super fast wide angle lens, especially Landscape, Seascape and Wedding Photo / Videographers.