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Lens Impression
Dr.Paul Rudolphが、その人生の最後を飾るようにして自ら設計したMiniature PlasmatをKleinbild Plasmatとして提供（上掲写真のレンズの特許番号がMiniature
Plasmatのものと同じということで特定できます。）し、Dr.Winklerの設計によってPlasmat社で開発されたのが、このRolandで、世界初の連動距離計を装備した金属鏡胴式のカメラがこのRolandです。Plasmat社は当初はDr.Winklerの所有だったようですが、後に（1933?)にDr.Rudolphの手に渡ります。残念ながら、Dr.Rudolphは僅か2年後の1935年にこの世を去ることになります。
このカメラはRolandの中でも、生産台数が少なく滅多に市場には登場しない希少な2型で、1型に装備されていた光学露出計は省かれ、代わりに、フィルムの1枚分巻き止め機構とそれに連動するフィルムカウンターが装備されました。
レンズの構成はMakro-Plasmatにとてもよく似ていますが、後群がMakro-plasmatが3枚独立なのに対し、このレンズは最後の2枚が貼り合せとなっています。描写はレンズ構成の影響かKino-PlasmatよりはMakro-Plasmatに近い、精密ですっきりした画像で、周辺部のぐるぐるは勿論、大きな流れも見られません。
Being offered the Miniature Plasmat that Dr.Paul Rudolph had himself invented
as almost the last monument of his life, as Kleinbild Plasmat (it can be
identified as same lens because the patent number of
the lens in photograph shown above is the same as that of Miniature Plasmat),
and had designed by Dr.Winkler in the Plasmat Co. is this Roland Camera.
And this camera was equipped with the world's first coupled range finder
in a metal camera and lens body, is also this Roland. The Plasmat GMBH
seems to be owned by Dr.Winkler, and handed over to Dr.Rudolph later(1933?).
To our regret, Dr.Rudolph departed this world in 1935 after only two years.
This camera was rare 2nd type of the Roland,
which the volume of production is rarely few and seldom appears in the market. The
optical exposure meter equipped in the 1st type was excluded, however
the automatic film winding stop mechanism by one exposure with the interconnected
film counter was equipped.
The composition of this lens is similar to the
Makro-Plasmat with the difference of the last lens group which of this lens is 2
lenses cemented, on the other hand is separated by each glass in Makro-Plasmat.
As for description, this lens shows the precise
and clear image without swirling bokeh or flows of image around peripheral area
which is closer to Makro-Plasmat because of the similar composition of lens possibly
than Kino-Plasmat.
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