[onlyken]

CMOS 呎吋計算疑問，舉例，Nikon 1 系的 sensor 是 8.8mm x 13.2mm, ,計算出來對角線只有約0.62吋左右，但資料一直說 Nikon 1 的是 1吋的 CMOS。那到底1 吋是怎樣計算出來？

[tom64]

Sensor formats of digital cameras are mostly expressed in the non-standardized "inch" system as approximately 1.5 times the length of the diagonal of the sensor. This goes back to the way image sizes of video cameras used until the late 1980s were expressed, referring to the outside diameter of the glass envelope of the video camera tube.

From Wiki
http://en.wikipedia.org/wiki/Image_sensor_format#Table_of_sensor_formats_and_sizes

[小小生]

DC仔一向都係咁計,駁你唔識計
DSLR就足數架