===== Pentax-A SMC 15mm f/3.5 ===== 
{{ :lens:pentax-a_smc_15mm_f3.5.png?250|}}
==== Summary ====
The SMC Pentax-A 15mm f/3.5 is a rare ultra-wide-angle prime introduced in 1984 and produced until 2004, designed for full-frame K-mount film cameras. It’s the final evolution of Pentax’s legendary 15mm design, sharing the same 13-element - 12-group optical formula as its K-series predecessor, but with a redesigned barrel and the addition of the “A” setting for full aperture automation on compatible bodies. It features Super Multi-Coating (SMC), a 5-blade automatic diaphragm, and built-in rear filters (Skylight, UV, Yellow, Orange) due to the bulbous front element, which precludes front filter use. The lens stops down to f/22, focuses as close as 30 cm, and delivers 0.06× magnification. It weighs 595g, measures 80 × 81.5mm, and includes a built-in hood, metal slip-on cap, and was originally sold with the HE-120 hard case or S90-100 soft case.
==== Tech Specs ====
| Manufacturer    |Pentax|
| Series          |A Series Prime|
| Model           |SMC|
| Focal Length    |15mm|
| Max Aperture    |f/3.5|
| Min Aperture    |f/22|
| Format          |Full-Frame|
| Image Circle    |-|
| Minimum Focus   |30cm|
| Focus Rotation  |°|
| Iris Blades     |5|
| Optical Design  |12/13|
| Squeeze         |none|
| Front Diameter  |80mm|
| Filter Thread   |none (built in filter wheel)|
| Focus/Zoom Rod  |none|
| Native Mount    |Pentax K|
| Data Protocol   |none|
| Length          |81.5mm|
| Weight          |595g|
| Body Telescope  |-|
| Body Material   |-|
| Focus Drive     |-|
| Iris Drive      |-|
| Zoom Drive      |-|
==== History ====
Country of Origin:  \\
Release Date: 1984 \\
Launch Price:  \\
Design Revisions:  \\

==== Service ====
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Service Manual: (Insert link to manual here) \\
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Full CLA: **TBD hrs.**\\
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==== Cine-Mod ====
<nodisp 8>
Focus Ring O.D.: -\\
Zoom Ring O.D.: -\\
Iris Ring O.D.: -\\
De-click Y/N: -\\
Additional Notes: \\
</nodisp>
==== Notes ====
==== Media ====