Rokinon's Xeen 24, 50, 85mm T1.5 Lenses for PL Mount are built specifically for use as a cinema lenses. They feature an internal focus design, so the lens does not change size while focusing; this minimizes the appearance of breathing when changing focus. Each lens in the set is multi-coated for good contrast, glare prevention, and color-match to a factory standard allowing you to assemble a set over time with minimal color shift. Consistent gear positions and front diameters make lens swaps quick, requiring minimal readjustment.