Photo Cinema reproduct lens [Mu-Yichi-Kyo]
Founded in January 2012
Photo Cinema reproduct lens [Mu-Yichi-Kyo]
Founded in January 2012
Capture images closer and more beautifully
Since we cannot use names that are subject to trademark rights, we have decided to use a format such as "**DE401630**" that clearly indicates the source of the data. We apologize for any inconvenience this may cause. - 2025.3.17
It seems that the general perception is that the Makro **DE456912** was attached to Leica before interchangeable lenses, and was also used for general still photography on other cameras, and was not supplied as a macro lens. I don't know if the field of macro photography existed at that time, but it was supplied for industrial purposes such as copying, so that may be what was meant by macro. It was also supplied to Kino (the movie). It seems to be very good for macro photography, but with a focal length of 35mm, it seems that there will be swirling bokeh (depending on the lighting conditions).
There are four photos taken by Roland on a German macro-specialty website. (There are probably more if you search on the same website.)
Meyer Görlitz Makro **DE456912** 2.7/105mm - Turkestanische Tulpe
Meyer Görlitz Makro **DE456912** 2.7/105mm - Farnwedel mit Rotbuchenblatt
Meyer Görlitz Makro **DE456912** 2.7/105mm - Feldahorn
Meyer Görlitz Makro **DE456912** 2.7/105mm - durchstrahlte Baldachinspinne
I don't want to have a broken link, so I'll post a screenshot of Roland's masterpiece. All of his works were shot with a 105mm lens. Since it's macro photography, a longer lens would be better.
As a result, looking at later designs, it has been proven that Rudolf's decision to adopt the Xenotar type for macro wide-angle lenses was a good one, so I think that in terms of its historical impact, the invention of the Macro **DE456912** was a valuable one.
There are two documents remaining for the Macro **DE456912** (German patent DE456912, British patent GB261326, US patent US1812717). The one actually manufactured was the last, fourth design. The angle of view was 64 degrees (35mm), and the aperture was increased to f2.9. This was the one that was commercialized. The aperture actually goes up to f2.7, so the drawings below are for f2.7. Since it is a macro lens, the calculation is based on a maximum focal length of 1m, and so the specs are f2.9.
The drawing is for a focal length of 35mm, but if you change it to 50mm(Below figure), the half angle of view will be about 22.5 degrees, so the astigmatism diagram (center) and curvature (right) will be cut off above half. Since this difference between the sagittal and meridional (dotted line) planes is crucial, the depiction intended by the design will not be achieved unless the focal length is 35mm. That being said, even at focal lengths of 50mm or more, there is less aberration, and the image quality is what we would call normal.
Rudolf's later designs, like this one, were a major influence on Leica. If you limit it to 50mm, the aberration is similar to that of a Leica lens.
The peripheral light level is low.
