=====Tribe7 Blackwing7 137mm T1.9 ===== 
{{ :lens:blackwing-137mm.png?direct&400|}}
==== Summary ====
==== Tech Specs ====
| Manufacturer    |Tribe7|
| Series          |Blackwing7|
| Model           |-|
| Focal Length    |137mm|
| Max Aperture    |T1.9|
| Min Aperture    |T22|
| Format          |Full Frame|
| Image Circle    |62mm|
| Minimum Focus   |32 in.|
| Focus Rotation  |270|
| Iris Blades     |14|
| Optical Design  |6/5|
| Squeeze         |none|
| Front Diameter  |104mm|
| Filter Thread   |none|
| Focus/Zoom Rod  |n/a|
| Native Mount    |PL|
| Data Protocol   |none|
| Length          |6.4 in.|
| Weight          |1500 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. image shift - some shift occurs in focus if followers are worn, have flat spots or damaged. See below for hours to access and adjust.</wrap>\\
Service Manual: [[staff:servicedb:tribe7blackwing|Disassembly/Re-assembly]] \\
SKIN Conversion: {{ :lens:tribe7-blackwing7-skin-specifications-spring24.pdf |}}\\
\\
**Test ALL tribe7 lenses on O-tool as part of every approved service. Screenshot and save results to thumb drive on o-tool computer**\\
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Full CLA: **6-8 hrs.**\\
<wrap note>Enter relevant notes here</wrap>\\
C/A Optics: **2-4 hrs**\\
<wrap note>to drop out optics: remove beauty ring, remove 4 phillips screws around front element and lift out optical core. 				
Factory tolerance for imperfections on elements: For your reference: Our factory tolerance for scratches are “A single lens with this specification is allowed to have 3 “dots” of the size of 0.1mm and 3 scratches with the width of 0.016mm</wrap>\\				
Image shift: **1-2 hrs**\\
<wrap note>image shift: factory spec - should be below 0.5mm at 6 feet (2 photosites)
currently fix: rotate cam followers to not flat spots to reduce image shift (best effort). we have plans to fabricate new followers as replacements but have not done so yet</wrap>\\
Rough iris: **3 hrs**\\
<wrap note>Remove iris, shim under internal iris ring to relieve tension on bearings.	</wrap>\\			
Centering/field: **2-3 hrs**\\
<wrap note>to drop out optics: remove beauty ring, remove 4 phillips screws around front element and lift out optical core. 
137mm optics are one solid piece from front to element behind iris, rear element can be removed from back, element under rear element is centerable. set screws in sides will disrupt centering. </wrap>\\
Re-collimate: **1-2 hrs**\\
<wrap note>compatible with zeiss 9 hole shims. tribe7 shims sold as 8 piece set only (not individually)	</wrap>\\
SKIN Conversion: **1 hr. per lens**\\
<wrap note>swap front element and witness ring. 3 different color temp options available. Confirm which is desired before swapping parts.\\
See here for general info on that: {{ :lens:tribe7-blackwing7-skin-specifications-spring24.pdf |}}</wrap>\\			
</nodisp>

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