===== Pentax-A SMC 35-105mm f/3.5 ===== 
{{ :lens:pentax-a_smc_35-105mm_f3.5.png?200|}}
==== Summary ====
The SMC Pentax-A 35–105mm f/3.5 is a manual-focus, constant-aperture zoom lens introduced in 1984 and produced until 1989, designed for full-frame K-mount film cameras. Often nicknamed the “stack of primes”, it was Pentax’s flagship zoom of the A-series era, offering a rare combination of optical quality, build, and macro versatility in a single package. It features a 15-element/13-group optical design, Super Multi-Coating (SMC), and a 6-blade automatic diaphragm. The lens maintains a constant f/3.5 aperture throughout its zoom range, stopping down to f/22, and focuses down to 1.5 meters in standard mode. A dedicated macro mode—accessible at all focal lengths—reduces the minimum focus distance to ~30 cm at 35 mm, delivering up to 0.25× magnification. It uses a 67mm filter thread, weighs 615g, and measures 70 × 98mm. It includes an “A” setting on the aperture ring, enabling full automation on compatible Pentax bodies.
==== Tech Specs ====
| Manufacturer    |Pentax|
| Series          |A Series Zoom|
| Model           |SMC|
| Focal Length    |35-105mm|
| Max Aperture    |f/3.5|
| Min Aperture    |f/22|
| Format          |Full-Frame|
| Image Circle    |-|
| Minimum Focus   |150cm|
| Focus Rotation  |°|
| Iris Blades     |6|
| Optical Design  |15/13|
| Squeeze         |none|
| Front Diameter  |70mm|
| Filter Thread   |67mm|
| Focus/Zoom Rod  |none|
| Native Mount    |Pentax K|
| Data Protocol   |none|
| Length          |98mm|
| Weight          |615g|
| 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: \\
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==== Notes ====
==== Media ====