Shutter, Metering and Exposure
The shutter, a vertically traveling, electronically controlled metal blade unit, can be set for speeds between 30 and 1/4000 seconds, with an X-sync speed of 1/200 second. A "Bulb" mode is also available, for exposure as long as the shutter button is depressed. The speed is continuously variable in Program and aperture-priority modes, and can be set in half-stop increments in shutter-priority and manual modes.
Metering is via a silicon photocell (SPC) giving 6-zone evaluative metering, center-weighted metering, and 6.5% partial metering. The metering range, at ISO 100 with a f/1.4 lens, is EV 1–20. Exposure compensation of ±2 EV can be applied in half-stop increments; the same range and increments apply to 3-shot auto-bracketing. The film speed range supported is ISO 25 to 8000, using DX coding if available.
Read more about this topic: Canon EOS IX