=====Nikon Nikkor F 20cm f/4 Q ===== 
{{ :lens:nikkor-f-20cm-f4-q.jpg?direct&400|}}
==== Summary ====
==== Tech Specs ====
| Manufacturer    |Nikon|
| Series          |Nikkor|
| Model           |F|
| Focal Length    |20cm|
| Max Aperture    |f/4 Q|
| Min Aperture    |-|
| Format          |-|
| Image Circle    |-|
| Minimum Focus   |3|
| Focus Rotation  |195|
| Iris Blades     |6|
| Optical Design  |4/4|
| Squeeze         |-|
| Front Diameter  |73|
| Filter Thread   |52|
| Focus/Zoom Rod  |-|
| Native Mount    |F|
| Data Protocol   |-|
| Length          |153.5|
| Weight          |560|
| Body Telescope  |-|
| Body Material   |-|
| Focus Drive     |-|
| Iris Drive      |-|
| Zoom Drive      |-|
==== History ====
Country of Origin: - \\
Release Date: - \\
Launch Price: - \\
Design Revisions:\\

==== Service ====
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Service Manual: (Insert link to manual here) \\
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Full CLA: **#hrs.**\\
<wrap note>Enter relevant notes here</wrap>\\
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==== Notes ====
==== Media ====