Pentacon's Exakta 200 — the 200mm f/4 telephoto, successor to the Meyer Orestegor.
The Pentacon 200mm f/4 is a telephoto prime made under the Pentacon brand, descended from the Meyer Orestegor 200mm and offered in the Exakta bayonet. It was the mainstream 200mm reach lens of the later East German line, brighter than the slow Telemegors of similar length. It served Exakta users who needed a longer, moderately fast telephoto for distant subjects.
This is a manual-focus Exakta-mount lens with a 200mm focal length and a maximum aperture of f/4. It uses the telephoto optical layout inherited from the Orestegor design and, like other Pentacon teles, carries a many-bladed aperture in some versions. The aperture is set on the barrel and coupled through the Exakta mechanism. Filter thread and weight are omitted where they cannot be confirmed.
The Pentacon 200mm f/4 gives useful reach at a brighter aperture than the slow Telemegors, keeping the viewfinder usable and offering some subject separation at distance. It suits wildlife, field sport and distant portraits where reach and a moderate aperture are both wanted. Central sharpness is good and improves stopped down, and its rendering matches the earlier Orestegor.
Used Pentacon 200mm f/4 lenses appear regularly and are reasonably priced for the reach they give. Inspect the large front element for haze, fungus and separation, and confirm the aperture blades are dry and the ring firm. Test the long focus helicoid and any tripod collar for smooth operation and no play. On mirrorless via an Exakta adapter it is a capable, affordable manual tele for distance work.