===== Pentax-A SMC 28mm f/2 ===== {{ :lens:pentax-a_smc_28mm_f2.png?250|}} ==== Summary ==== The SMC Pentax-A 28mm f/2 is a fast, manual-focus wide-angle prime introduced in 1984 and produced until 1988, designed for full-frame K-mount film cameras and fully compatible with modern Pentax DSLRs. It was the fastest 28mm lens in the A-series lineup and is often associated with the legendary Zeiss Distagon 28mm f/2 “Hollywood”, sharing a similar optical formula and cult status among vintage lens enthusiasts. Optically, it features an 8-element/7-group design, Super Multi-Coating (SMC), and a 6-blade automatic diaphragm. It offers a 75° diagonal field of view on full-frame (or ~55° on APS-C), focuses down to 30cm, and delivers 0.13× magnification. The lens uses a 49mm filter thread, weighs 215g, and measures 63 × 41.5mm. It includes an “A” setting on the aperture ring, enabling full program and shutter-priority automation on compatible Pentax bodies. ==== Tech Specs ==== | Manufacturer |Pentax| | Series |A 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 |8/7| | Squeeze |none| | Front Diameter |63mm| | Filter Thread |49mm| | Focus/Zoom Rod |none| | Native Mount |Pentax K| | Data Protocol |none| | Length |41.5mm| | Weight |215g| | 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 ====