Followed by the success of the Laowa 60mm f/2.8 2:1 Macro, the 100mm f/2.8 2:1 Macro is the 2nd member of Laowa 2:1 macro line-up. It features an apochromatic (APO) characteristic that chromatic aberration at both ‘in-focus' & ‘out-of-focus' is both invisible. This new 100mm lens can cover full frame sensor size and focus from 2:1 magnification to infinity. The lens has a similar physical size to other 100mm Macro lenses in the market but its wider magnification range allows macro photographers to capture subjects at any sizes. This 100mm f/2.8 lens can also focus to infinity and serve as a portrait lens with exceptional optics quality. Compatible with Pentax K