===== Pentax-A SMC 50mm f/1.2 ===== {{ :lens:pentax-a_smc_50mm_f1.2.png?250|}} ==== Summary ==== The SMC Pentax-A 50mm f/1.2 is a legendary ultra-fast standard prime lens for Pentax K-mount 35mm and full-frame digital SLRs, produced from 1984 to 2004. It features a 7-element/6-group optical design, a 9-blade automatic diaphragm, and Pentax’s Super Multi-Coating (SMC) for enhanced contrast, color fidelity, and flare resistance. With a blazing f/1.2 maximum aperture, it delivers exceptional low-light performance and dreamy, shallow depth-of-field—making it a favorite for portraiture and artistic photography. The lens focuses down to 0.45m, offers a 0.15× magnification, and uses a 52mm filter thread. It weighs 345g, measures 65 × 49mm, and includes an “A” setting on the aperture ring, enabling full Program, Shutter-priority, and Aperture-priority modes on compatible Pentax bodies. While it lacks autofocus, internal focusing, and weather sealing, it’s built solidly with a metal barrel and smooth manual focus throw—ideal for precise control. ==== Tech Specs ==== | Manufacturer |Pentax| | Series |A Series Prime| | Model |SMC| | Focal Length |50mm| | Max Aperture |f/1.2| | Min Aperture |f/22| | Format |Full-Frame| | Image Circle |-| | Minimum Focus |45cm| | Focus Rotation |°| | Iris Blades |9| | Optical Design |7/6| | Squeeze |none| | Front Diameter |65mm| | Filter Thread |52mm| | Focus/Zoom Rod |none| | Native Mount |Pentax K| | Data Protocol |none| | Length |49mm| | Weight |345g| | Body Telescope |-| | Body Material |-| | Focus Drive |-| | Iris Drive |-| | Zoom Drive |-| ==== History ==== Country of Origin: \\ Release Date: 1984 \\ Launch Price: \\ Design Revisions: \\ ==== Service ==== Service Manual: (Insert link to manual here) \\ \\ Full CLA: **TBD hrs.**\\ \\ ==== Cine-Mod ==== Focus Ring O.D.: -\\ Zoom Ring O.D.: -\\ Iris Ring O.D.: -\\ De-click Y/N: -\\ Additional Notes: \\ ==== Notes ==== ==== Media ====