===== Sigma ART DG DN 20mm f/1.4 ===== 
{{ :lens:sigma-dgdn-20mmf1.4.png?direct&400|}}
==== Summary ====
==== Tech Specs ====
| Manufacturer    |Sigma|
| Series          |ART|
| Model           |DG DN|
| Focal Length    |20mm|
| Max Aperture    |f/1.4|
| Min Aperture    |f/16|
| Format          |Full Frame|
| Image Circle    |-|
| Minimum Focus   |9.1in|
| Focus Rotation  |-|
| Iris Blades     |11|
| Optical Design  |17/15|
| Squeeze         |-|
| Front Diameter  |-|
| Filter Thread   |82mm|
| Focus/Zoom Rod  |-|
| Native Mount    |L, E|
| Data Protocol   |-|
| Length          |4.4-4.5in|
| Weight          |630-635g|
| Body Telescope  |-|
| Body Material   |-|
| Focus Drive     |-|
| Iris Drive      |-|
| Zoom Drive      |-|
==== History ====
Country of Origin: Japan \\
Release Date: - \\
Launch Price: - \\
Design Revisions:\\

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

==== Notes ====
==== Media ====