===== Pentax 67 SMC Takumar 55mm f/4 Ver 1 ===== 
{{ :lens:pentax55mm6x7f4.png?300|}}
==== Summary ====
The SMC Pentax-6×7 55mm f/4 is a wide-angle prime introduced in 1979 for the Pentax 6×7 medium format system, offering a field of view equivalent to a 28mm lens on 35mm film. It replaced the earlier, heavier 55mm f/3.5 Takumar and was later succeeded by the optically refined SMC Pentax 67 55mm f/4 in 1986. This version is often referred to as the “second-generation” 55/4, and it strikes a balance between performance, size, and usability. The lens features a 9-element - 8-group optical design with Super Multi-Coating (SMC) and an 8-blade automatic diaphragm. It stops down to f/22, focuses as close as 40cm, and delivers 0.2× magnification—making it surprisingly capable for close-up work. It uses a 77mm filter thread, weighs 615g, and measures 91.5 × 75.5mm. It lacks internal focusing and weather sealing, but includes a manual aperture ring (no “A” setting), and supports both screw-in and bayonet filters. A dedicated PH-SA hood and S90-100 case were standard accessories.\\
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Came in two variants with **different** specs. See other version.
==== Tech Specs ====
| Manufacturer    |Pentax|
| Series          |67|
| Model           |SMC Takumar|
| Focal Length    |55mm|
| Max Aperture    |f/4 Ver 1|
| Min Aperture    |f/22|
| Format          |6x7|
| Image Circle    |-|
| Minimum Focus   |40cm|
| Focus Rotation  |°|
| Iris Blades     |8|
| Optical Design  |9/8|
| Squeeze         |none|
| Front Diameter  |91.5mm|
| Filter Thread   |77mm|
| Focus/Zoom Rod  |none|
| Native Mount    |Pentax 6x7|
| Data Protocol   |none|
| Length          |75.5mm|
| Weight          |615g|
| Body Telescope  |-|
| Body Material   |-|
| Focus Drive     |-|
| Iris Drive      |-|
| Zoom Drive      |-|
==== History ====
Country of Origin:  \\
Release Date: 1979 \\
Launch Price:  \\
Design Revisions:  \\

==== Service ====
<nodisp 8>
Service Manual: (Insert link to manual here) \\
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Full CLA: **TBD hrs.**\\
<wrap note></wrap>\\
</nodisp>
==== 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 ====