OCT-18 lens to MFT (micro 4/3) camera mount adapter, simplified

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This adapter allows using OCT-18 lenses on Micro 4/3 mount cameras like Panasonic Lumix G1 or Black Magic Pocket Cinema Camera.

OCT-18 is mount of a turret Konvas camera. There are many lenses available in such mount, and many people would like to try to use cine lenses on still image digital cameras.

This adapter allows using OCT-18 lenses on Micro 4/3 mount cameras like pictured Panasonic Lumix G1. Actually, it should work with any m4/3 camera.

"Simplified" means that this adapter is purposed for zoom lenses mainly. Original Konvas mount allows a lens external mount part rotate while keeps internal part immovable. This is necessary to move an optical block of a lens along optical axis without rotating of the optics and scale index mark.

Zoom lenses and anamorphic blocks (solid anamorphic lenses, not combos of a sperical lens + front anamorphic attachment) have internal focusing mechanism, so they don't need complicated mount system of Konvas camera - their mount can be just locked in the adapter. This is what our adapter exactly does - it locks the lens mount with three stop screws. Zoom and anamorphic lenses work as intended with this adapter.

As to prime lenses and anamorphic combos, situation is bit different here. With the mount locked in the adapter, you can't rotate external barrel of the mount, and should rotate inner optical block instead to focus a lens. This causes some inconvenience: the optical block may turn off the housing completely, and scales index rotate instead of being immovable. Also, you'll not be able to focus anamorphic combo with this adapter. If this is not a big problem for you, you can use OCT-18 primes with this adapter as well.

Couple more notes:

  1. The adapter is made of durable aluminium alloy and anodized to black color.
  2. Infinity focus is preserved.
More Information
Adapter Front Side OCT-18
Adapter Rear Side MFT (Micro 4/3)
Material Aluminium
Manufacturer RafCamera
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