===== Berolina 135mm f/1.5 =====
{{ :lens:berolina_135mm_f1_5-22_preset_02.jpg?300|}}
==== Summary ====
Relatively rare lens. Also branded as Vivitar and Carl Meyer Speed ("Carl Meyer" was a house brand name of Burke & James, Chicago) 
==== Tech Specs ====
| Focal Length    |135mm|
| Max Aperture    |f/1.5|
| Min Aperture    |f/22|
| Image Format    |FF35|
| Minimum Focus   |5.4'|
| Iris Blades     |16|
| Optical Design  |7 elements, 6 groups|
| Squeeze         |Spherical|
| Front Diameter  |N/A|
| Filter Thread   |95mm|
| Native Mount    |T-Mount|
| Data Protocol   |N/A|
| Length          |?|
| Weight          |4.3 lbs.|
| Body Telescope  |-|
| Body Material   |Aluminum|
| Focus Drive     |-|
| Iris Drive      |-|
| Data Protocol   |-|
==== History ====
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==== Modifications ====
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Additional Notes: Nikon version can accept Leitax EF\\
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==== Cine-Mod ====
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==== Notes ====
http://camera-wiki.org/wiki/Vivitar_Professional_135mm_f/1.5\\
https://www.digicamclub.de/showthread.php?t=19009\\
https://www.madeinchicagomuseum.com/single-post/burke-and-james\\