=====P+S Technik Evolution Black 50mm T2.4 ===== 
{{ :lens:1655129725_img_1771926.jpg?400|}}
==== Summary ====
==== Tech Specs ====
| Manufacturer    |P+S Technik|
| Series          |Evolution|
| Model           |Black|
| Focal Length    |50mm|
| Max Aperture    |T2.4|
| Min Aperture    |T22|
| Format          |S35|
| Image Circle    |31.1mm|
| Minimum Focus   |36 in.|
| Focus Rotation  |200|
| Iris Blades     |-|
| Optical Design  |-|
| Squeeze         |2X|
| Front Diameter  |80mm|
| Filter Thread   |none|
| Focus/Zoom Rod  |-|
| Native Mount    |PL|
| Data Protocol   |n/a|
| Length          |6.1 in.|
| Weight          |1200 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>
Service Manual: [[staff:servicedb:pstechKowaevo|Disassembly/Re-assembly]] \\
\\
Full CLA: **12-14hrs.**\\
<wrap note>internal housing is on solid unit. entire lens must be dis-assembled to access focus doublet or rear optics.</wrap>\\
Reposition focus stop:**TBD**\\
<wrap note>cam followers are spring loaded. If travels past stop, can jump out of track and jam focus. reposition focus stop and push followers back into track for focus travel. </wrap>\\			
adjust twist: **2-3 hrs.**\\					
Adjust S+Ts: **3-4 hrs.**\\
<wrap note>40 & 50mm: under rear optical group, brass threaded ring will adjust height. rotate to find best vertical and horizontal lines. cannot be accessed or adjusted in real time. </wrap>\\				
bumpy focus: **4-8 hrs**\\
<wrap note>various things to check: \\
#1: focus witness ring has piggy backed set screws under iris ring close to core of lens. check to see if set screws have worked forward and are interfering with bearing ring underneath.\\ 
#2: bearings may have dented focus section if impact damage. smooth and re-lube bearings (best effort)\\
#3: cam followers too tight or dented cam ways. </wrap>\\
parts: \\
<wrap note>4 cam followers in focus section (all the same) 2 in front and 2 in back.\\
front and bake follower pins are different construction. \\
PL mount screws: M2x5 narrow cheese head QB # 77801016</wrap>\\	
</nodisp>

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