[onlyken]

很多DSLR 都有ISO增減級, 如D7000, ISO100 - ISO6400, 可增兩級, H1, H2, 相等於 ISO12800, ISO25600. 既然其增感兩級的ISO相等於 ISO12800, ISO25600, 那為什麼廠商不直接寫最高ISO 為ISO12800, ISO25600, 而要用H1, H2 代替?

[snoopybee]

This is what I got from DPREVIEW

The numbered sensitivites are the ones that electrically the sensor is wired to produce.

the hi ones are ones that are created by the software in the camera (similar to pushing film).

[onlyken]

Clearly answer, 100% understand, thank you very much, CHING!