How about Lulai MiniDigi 5.0 digital camera?

MiniDigi 5.0 is a commemorative 5 megapixel digital camera developed by MINOX (a company famous for producing all kinds of small spy cameras) in Germany. It adopts the appearance of classic Rolleiflex 2.8 and is produced in Japan. The workmanship is not bad. It's a very delicate little toy.

However, the Department of Optics has nothing to do with the Zeiss or Schneider lenses in Lulai, just an ordinary group of three digital lenses. Moreover, there is only 5 million pixels of 1/3 CD (ordinary small numbers are generally 1/2.3), and the picture quality requirements should not be too high. As far as its function is concerned, the price is very expensive. In the Japanese market, this camera is classified as a toy camera, which is suitable for giving as a small gift or playing by yourself, but not suitable for daily use.

The recommended answer is puzzling. . The actual focal length of this camera lens is 4.9 mm, which is equivalent to 9.9 mm of 135 camera. Is this a 4/3 system camera?