"=====Leica R Summicron Ver I 35mm f/2 ===== 
{{ :lens:35mmf2summicron-ri.jpg?direct&400|}}
==== Summary ====
The Leica Summicron-R 35mm f/2 is a fast wide-angle prime lens for 35 mm SLR Leica R cameras.

In 1977 it was discontinued and replaced with its 2nd version Leica Summicron 35mm f/2 (E55).
==== Tech Specs ====
| Manufacturer    |Leica|
| Series          |R|
| Model           |Summicron Ver I|
| Focal Length    |35mm|
| Max Aperture    |f/2|
| Min Aperture    |f/16|
| Format          |-|
| Image Circle    |-|
| Minimum Focus   |30cm / 11.81 in.|
| Focus Rotation  |-|
| Iris Blades     |6|
| Optical Design  |9/7|
| Squeeze         |none|
| Front Diameter  |-|
| Filter Thread   |Series 7|
| Focus/Zoom Rod  |-|
| Native Mount    |R|
| Data Protocol   |-|
| Length          |61mm|
| Weight          |510g|
| Body Telescope  |-|
| Body Material   |-|
| Focus Drive     |Manual|
| Iris Drive      |Manual|
| Zoom Drive      |n/a|
==== History ====
Country of Origin: - \\
Release Date: 1972-1976 \\
Launch Price: - \\
Design Revisions:\\

==== Service ====
<nodisp 8>
Service Manual: [[staff:servicedb:Leica-R|Disassembly/Re-assembly]] \\
\\
Full CLA: **4-5 hrs.**\\
<wrap note>Enter relevant notes here</wrap>\\
re-collimate: **1 hr**\\
<wrap note>remove FER, front housing, loosen lock ring inside focus scale to shift timing. use glue to secure lock rings.</wrap>\\
T+S focus scale: **1 hr**\\
<wrap note>Remove front ring and optics to access internal screw holding scale. Tighten and secure.</wrap>\\
</nodisp>
==== Cine-Mod ====
<nodisp 8>
Focus Ring O.D.: -\\
Zoom Ring O.D.: -\\
Iris Ring O.D.: -\\
De-click Y/N: Yes\\
Iris Coupling: Yes, **N/A**\\
<wrap note>check lens model and version before confirming if dis-assembly is required. Some versions can be easily accessed under the mount for $50. Some may not be easy to access.</wrap> \\
Additional Notes: \\
</nodisp>
==== Notes ====
==== Media ====