=====ZEISS (ARRIFLEX) Standard Speed Distagon 12mm T2.1 MkI ===== 
{{ :lens:12mm-zeiss-standard-speed.jpg?300|}}
==== Summary ====
This is a 16mm lens with an aspheric adapter\\
\\
**Standard mount lenses:** ARRI Standard mount, smaller lens housing, no geared iris or focus rings, focus "wings" or tabs\\
**Standard Speed MkI:** ARRI Standard or PL mount, larger lens housing, geared focus ring, no geared iris ring\\
**Standard Speed MkII:** ARRI Standard or PL mount, larger lens housing, geared focus and iris rings\\
==== Tech Specs ====
| Manufacturer    |ZEISS|
| Series          |Standard Speed MkI|
| Model           |Distagon|
| Focal Length    |12mm|
| Max Aperture    |T2.1|
| Min Aperture    |T22|
| Format          |Super 35|
| Image Circle    |-|
| Minimum Focus   |10 in.|
| Focus Rotation  |-|
| Iris Blades     |-|
| Optical Design  |-|
| Squeeze         |none|
| Front Diameter  |135mm|
| Filter Thread   |none|
| Focus/Zoom Rod  |n/a|
| Native Mount    |PL|
| Data Protocol   |none|
| Length          |5.5 in.|
| Weight          |1134 g|
| Body Telescope  |none|
| Body Material   |Aluminum|
| Focus Drive     |Manual|
| Iris Drive      |Manual|
| Zoom Drive      |n/a|
==== History ====
Country of Origin: Germany \\
Release Date: - \\
Launch Price: - \\
Design Revisions:\\

==== Service ====
<nodisp 8>
**Known Issues:**\\
<wrap note>1. Two versions of 12mm created: an Arri 12mm and a converted ZEISS 16mm T2.1. Differences:  The Arri 12mm has a remanufactured focus scale that reads down to 7".  It also has the "16" machined off the rear housing and has a little "12" sticker in its place.</wrap>\\
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Service Manual: [[staff:servicedb:ZeissT2.1MkI/MkII|Disassembly/Re-assembly]]\\
Screws: [[staff:servicedb:zeissparts]]\\
PL Mount Cone Sizes: [[staff:servicedb:ZEISS PL Cone]]\\
\\
Full CLA: **6-7 hrs.**\\
<wrap note>Enter relevant notes here</wrap>\\
front ring diameter: 5.313"/134.9mm\\
replace FE:\\
<wrap note>2 versions of FE (old & new): smaller can be installed with shims into larger housing. not the other way around.</wrap>\\				
							
</nodisp>

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