Friday, 29 November 2013

Meopta Openar 40 mm 1:1.8 [C-mount]

I recently got an interesting C-mount Czech lens for Meopta Admira 16 A1/A2 electric 16 mm movie camera. Here you can take a look at more pictures of that camera and lenses: [link]

First of all and the most important fact: it covers Micro Four Thirds sensor. There is some vignetting, but I suppose it comes from lens itself rather than from size of the sensor. Image quality doesn't decrease significantly closer to edges. It's a very sharp lens. Although Meopta Admira was an amateur model, its quality was very high

Meopta Openar 40 mm @1.8
Meopta Openar 40 mm @1.8

Openar is a small (C-mount, of course) lens, made entirely of metal and glass. Quite heavy for its size. My piece mounts in C-mount > M4/3 adapter upside down, but it's fully functional. Focusing ring was pretty hard to rotate at first, but after few uses it got much better. I simply love the way it looks! And all those engraved and enameled distance marks... beautiful!
Focusing ring is quite close to mount thread, but comparing it to Fujian lenses - there are no difficulties in focusing. It's easy and comfortable.

Meopta Openar 40/1.8 compared to Fujian 35/1.7 and Fujian 25/1.4Meopta Openar 40/1.8 compared to Fujian 35/1.7 and Fujian 25/1.4
 Meopta Openar 40/1.8 compared to Fujian 35/1.7 and Fujian 25/1.4

And a happy family of Meopta Openar lenses:

A set of Meopta c-mount lenses:
Meopta Openar 20/1.8
Meopta Openar 40/1.8
Meopta Openar 80/2.8
Meopta Admira 16 A1 Electric film camera in the background.
Meopta Openar 40 mm allows you to focus from 80 cm/2,6 ft., but as I tested it I had an impression it could focus a bit closer. Quality at close-ups is outstanding.

Meopta Openar 40/1.8 - close-up (as close as possible).
Meopta Openar 40/1.8 - close-up (as close as possible).
At F1.8 it has a very thin focus depth. With M4/3 crop factor it should work great as portrait lens. Wide enough to capture close objects and with nice rear bokeh.

Meopta Openar 40/1.8 @1.8Meopta Openar 40/1.8 @1.8

Meopta Openar 40/1.8 @1.8Meopta Openar 40/1.8 @1.8
 Pictures taken the same place with different focus settings.

Unfortunately Meopta Openar works pretty bad, when directed into sun or light source. It looses contrast and a bit of sharpness. It could be a good idea to use it as for vintage portraits.

Meopta Openar 40/1.8 @1.8
Lens directed towards very bright sky - loss of contrast and slight decrease in sharpness.
Rear bokeh is really nice. Nothing particularly sophisticated, but neat and good-looking :)

Meopta Openar 40/1.8 @1.8
Bokeh @F1.8

Bokeh of Meopta Openar 40mm @F4.0 - aperture shape visible.
Bokeh @F4.0 - aperture shape visible.



Finally - aperture is hexagonal. There are no mid-stops other than values mentioned below:

Meopta Openar 40 mm 1.8 @1.8
Meopta Openar 40 mm 1.8 @1.8

Meopta Openar 40 mm 1.8 @2.0
Meopta Openar 40 mm 1.8 @2.0

Meopta Openar 40 mm 1.8 @2.8
Meopta Openar 40 mm 1.8 @2.8

Meopta Openar 40 mm 1.8 @4.0
Meopta Openar 40 mm 1.8 @4.0

Meopta Openar 40 mm 1.8 @5.6
Meopta Openar 40 mm 1.8 @5.6

Meopta Openar 40 mm 1.8 @8.0
Meopta Openar 40 mm 1.8 @8.0

Meopta Openar 40 mm 1.8 @11.0
Meopta Openar 40 mm 1.8 @11.0

Meopta Openar 40 mm 1.8 @16.0
Meopta Openar 40 mm 1.8 @16.0

Meopta Openar 40 mm 1.8 @22.0
Meopta Openar 40 mm 1.8 @22.0

3 comments:

  1. Beautiful lens as we might expect. Excellent resolution. Need a pic of the lens itself to help determine how user friendly it appears? Focus ring too close to adapter etc?

    Patrick Donnelly

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    Replies
    1. Updated with lens photos. Focusing ring is just fine. As I compared it to Fujian lenses - it's pretty the same distance or even better :)

      I really need some bright background for lens shots :/

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