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Sensor details.

 

The CMV20000 image sensor features a 20 Megapixel (5,120 x 3,840) resolution with 6.4 um sized square pixels resulting in an active sensor area of 32.8 x 24.6 mm (35 mm film optical format). 

Strange. 35mm film format is 36x24mm (3:2 aspect ratio). This is a 4:3 format (old TV screen format, which traditionally is used in compact digital cameras because computer screens used to be based on that old TV screen aspect ratio, and also used by Olympus when they started the 4/3rds sensor conception because of that it was the format compact cameras used.

 

So they call it full frame 35mm, when it is not.