===== Pentax SMC 28mm f/2 ===== {{ :lens:pentax_smc_28mm_f2.png?250|}} ==== Summary ==== The SMC Pentax 28mm f/2 is a fast, manual-focus wide-angle prime introduced in 1976 and produced until 1981, designed for full-frame K-mount film cameras. It’s often referred to as the “Hollywood” Pentax, due to its rumored connection to the Zeiss Distagon 28mm f/2 optical formula. With a 9-element/8-group design, Super Multi-Coating (SMC), and a 6-blade automatic diaphragm, it delivers a 75° diagonal field of view on full-frame (or ~55° on APS-C), making it ideal for street, documentary, and environmental portraiture. The lens focuses down to 30cm, offers 0.11× magnification, and uses a 52mm filter thread. It weighs a hefty 423g, measures 62.5 × 69mm, and includes a dedicated PH-S52 hood and hard case. Two cosmetic variants exist—SMC PENTAX 1:2/28 (early) and smc PENTAX 1:2 28mm (later)—but both are optically identical. It lacks an “A” setting on the aperture ring, so it’s best used in manual or aperture-priority modes on modern digital bodies. ==== Tech Specs ==== | Manufacturer |Pentax| | Series |K Series Prime| | Model |SMC| | Focal Length |28mm| | Max Aperture |f/2| | Min Aperture |f/22| | Format |Full-Frame| | Image Circle |-| | Minimum Focus |30cm| | Focus Rotation |°| | Iris Blades |6| | Optical Design |9/8| | Squeeze |none| | Front Diameter |62.5mm| | Filter Thread |52mm| | Focus/Zoom Rod |none| | Native Mount |Pentax K| | Data Protocol |none| | Length |69mm| | Weight |423g| | Body Telescope |-| | Body Material |-| | Focus Drive |-| | Iris Drive |-| | Zoom Drive |-| ==== History ==== Country of Origin: \\ Release Date: 1976 \\ 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 ====