This manual focus wide angle lens for APS-C format cameras, offers a fast angle of view equivalent to a 15mm lens, with a relatively fast maximum aperture of f/2.8 for a budget launch price of around £429.

another good lens from SamYang/Walimex/Rokinon

sharp; contrasty; nice format this is a very good Ultra Wide and much better than Sigma 10 20 at 10mm It is also better than Sigma 8 16 at 10mm (but Sigma is also very very good

like every SY distance scale needs to be calibrated with Live View/ Contrast detect; but after that has been done...perfect