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Isco-Gottingen Tele-Westanar 135 mm f/ 3.5 Lens

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Isco-Gottingen Tele-Westanar 135 mm f/ 3.5 lens

Isco-Gottingen Tele-Westanar 135 mm f/ 3.5 lens

Isco-Gottingen Tele-Westanar 135 mm f/ 3.5 lens

Isco-Gottingen Tele-Westanar 135 mm f/ 3.5 lens

Optical design

Isco-Gottingen Tele-Westanar 135 mm f/ 3.5 optical design

Format: 35mm SLR

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: M42, Exakta

Optical design: 5 elements in 4 groups

User reviews (2)

Photos (13)

Tests (0)

Owners (6)

Views (22092)

Average price: $140


Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)

Additional information:

Isco-Gottingen Tele-Westanar 1:3.5/135 (preset) is a telephoto prime lens for 35 mm SLR cameras.

Links to online resources:
Posted by: Sergey Gorbachevsky   Date of publication: 09.10.2012

Photos taken with this lens Isco-Gottingen Tele-Westanar 135 mm f/ 3.5:

Isco Göttingen Tele-Westanar 135mm f3.5
Autor: panoramapeople
5 0 3544

Autor: Sergey Gorbachevsky
4.5 0 3477

Хорошо пробежались
Autor: Sergey Gorbachevsky
4.25 0 2801

девушка играющая
Autor: Sergey Gorbachevsky
4.12 0 4709

Mechanical quality4.336
Optical quality4.836
Pricing / Value4.336
Overall lens rating

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Owner reviews: Isco-Gottingen Tele-Westanar 135 mm f/ 3.5

panoramapeople 21.06.2015 15:33:44
Period of use: 2 years


This lens has a 15 blade aperture, creating a very nice bokeh. The glass is fine and offers a great resolution and sharpness. Solid made, small body, very smooth focus. 


The aperture is fully manual. It has to be set before focusing. Front element moves while focusing. There are no coatings on the glass so it's recommended to use a sunshade or to avoid direct sunlight on the reflecting silver iris.

This lens can not be adapted to digital full frame SLR.


All weaknesses come from the construction of the lens body wich aimed to a lower price segment. 

The leak of coatings can be seen as a plus or a minus, depending on the shooting situation and camera. For digital video, this gives some extra in latency and helps on colour grading. It's a cool close portrait lens for a fair budget.

Sold als Tele-Westanar, Berolina-Westanar, both in M42 and EXA mount. Another more rare and expensive version has an automatic iris and backfocus. (Iscomat) both released in 1961.