135mm F2.0 Full Frame Telephoto Mount:Pentax K UMC Ultra Multi-Coating has been

UMC Ultra Multi-Coating has been applied to individual elements in order to reduce flare and ghosting for increased contrast and accurate color rendition

It was clearly designed for a portrait photographer

Parfocal - This function maintains the focus on the subject when zooming in/out

one hybrid aspherical element

135mm F2.0 Full Frame Telephoto Mount:Pentax K UMC Ultra Multi-Coating has beenThe Samyang 135mm F2. 0 ED UMC Lens is a manual focus telephoto prime lens useful for portraiture and most telephoto applications. Its fast f 2. 0 maximum aperture is effective in low light and enables shallow depth of field control. With a rounded 9 blade diaphragm, shallow depth of field imaging will be rendered with pleasing out of focus highlights. Compatible with both full frame and APS C format mirrorless E mount cameras, this lens provides a