Rokinon 85mm f/1.4 AS IF UMC Lens for Pentax K Review

The Rokinon 85mm f/1.4 AS IF UMC is a manual focus portrait prime for Pentax K-mount cameras that delivers fast aperture performance at a budget-friendly price. Designed for full-frame sensors, it features a hybrid aspherical element and Ultra Multi-Coating to improve sharpness and reduce flare. The rounded 8-blade diaphragm produces smooth bokeh, and internal focusing keeps the barrel length consistent during use.

At $259, this lens sits squarely in the affordable manual glass category. It's aimed at portrait and low-light shooters who don't mind focusing by hand and want the creative control and shallow depth of field that f/1.4 provides. Rokinon's 85mm lineup has historically offered solid optical value for the money, though manual focus requires practice and patience, especially for moving subjects. The lens appeals most to hobbyists, enthusiasts, and anyone looking to explore fast prime optics without the expense of autofocus counterparts.