===== Pentax SMC 35mm f/3.5 ===== {{ :lens:pentax_smc_35mm_f3.5.png?250|}} ==== Summary ==== The SMC Pentax 35mm f/3.5 is a compact, manual-focus wide-angle prime lens for Pentax K-mount 35mm and full-frame digital SLRs, produced from 1975 to 1977. It features a 5-element/4-group optical design derived from the classic Auto-Takumar 35mm f/3.5, a 5-blade automatic diaphragm, and Pentax’s Super Multi-Coating (SMC) for improved contrast, color fidelity, and flare resistance. With a modest f/3.5 maximum aperture, it prioritizes sharpness and portability over speed. The lens focuses down to 0.35m, delivers a 0.13× magnification, and uses a 52mm filter thread. It weighs just 161g and measures 63 × 36mm, making it nearly pancake-like in size. Though it lacks an “A” setting on the aperture ring, it’s fully compatible with manual and aperture-priority modes on Pentax DSLRs. ==== Tech Specs ==== | Manufacturer |Pentax| | Series |K Series Prime| | Model |SMC| | Focal Length |35mm| | Max Aperture |f/3.5| | Min Aperture |f/22| | Format |Full-Frame| | Image Circle |-| | Minimum Focus |35cm| | Focus Rotation |°| | Iris Blades |5| | Optical Design |5/4| | Squeeze |none| | Front Diameter |63mm| | Filter Thread |52mm| | Focus/Zoom Rod |none| | Native Mount |Pentax K| | Data Protocol |none| | Length |36mm| | Weight |161g| | Body Telescope |-| | Body Material |-| | Focus Drive |-| | Iris Drive |-| | Zoom Drive |-| ==== History ==== Country of Origin: \\ Release Date: 1975 \\ 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 ====