===== 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 \\
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==== Service ====
Service Manual: (Insert link to manual here) \\
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Full CLA: **TBD hrs.**\\
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==== Cine-Mod ====
Focus Ring O.D.: -\\
Zoom Ring O.D.: -\\
Iris Ring O.D.: -\\
De-click Y/N: -\\
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==== Notes ====
==== Media ====