Traditional Culture Encyclopedia - Photography and portraiture - What are the letters and numbers of Sony SI-F209 mounter?

What are the letters and numbers of Sony SI-F209 mounter?

SI is Sony's series classification, F is the version classification of mounter, and 209 is the equipment model code.

SI-F209 is a general model of Sony.

Sony is divided into E F G to H series equipment model codes according to different years, different types and different functions.