Best Seller | Rokinon 135mm f/2.0 ED UMC Lens (Pentax K) 135M-P *Save The Tax Instantly! Use B&H Payboo to get an instant rebate on the Tax amount. Free Express Shipping! Rokinon 135mm f/2.0 ED UMC Lens (Pentax K) Pentax K Mount Lens/Full Frame, 202.5mm (35mm Equivalent), Aperture Range: f/2.0 to f/22, One Extra-Low Dispersion Element, Ultra Multi-Coating, Manual Focus, Manual Aperture Ring,... more | | $549.00 $399.00 FREE shipping go to store |