Canon EOS 1D Mark III Додаткові функції - Сторінка 2

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C.Fn I-5: Auto Exposure Bracketing sequence

I-5-0 — First shot normal, second shot under, third shot over

I-5-1 — First shot under, second shot normal, third shot over

I-5-2 — First shot over, second shot normal, third shot under

For use with Auto Exposure Bracketing this function sets up your desired shooting sequence. By default the first shot is at the "proper"

exposure, the second shot is under, and the third shot is over. With this function you can set it up to take the bracketed shot sequence

to your preference. It is particularly useful if you take only two bracketed shots, using C.Fn I-6-1 (below) – you use C.Fn I-5 to

determine if your bracketed exposure is over or under. Note that this C.Fn also can impact White Balance Bracketing, if you activate

it — in Blue/Amber, the minus direction means more Blue, and for Magenta/Green, the minus direction means more Magenta

C.Fn I-6: Auto Exposure Bracketing — number of shots

I-6-0 — Three shots

I-6-1 — Two shots

I-6-2 — Five Shots

I-6-3 — Seven shots

When using Auto Exposure Bracketing, select the number of bracket shots. Choose to take two, three, five, or even seven shots

in a single bracketed sequence.

C.Fn I-7: Spot Metering linked to AF point

I-7-0 — Disable (Spot metering is always at center, regardless of selected AF point)

I-7-1 — Enable (Spot metering always at active AF point, regardless of location)

By having Spot metering at the same location as a manually-selected AF point, it's possible to meter and focus without having to

move the camera — even in the manual exposure mode. However, some shooters prefer knowing that Spot metering is always

at the center of the viewfinder. C.Fn I-1-7 gives the shooter either option. Note: if Automatic AF point selection is active, any Spot

metering is always at the center, regardless of how this Custom Function is set.

C.Fn I-8: Safety Shift — camera adjusts exposure if out of range

I-8-0 — Disable (no shifting of user-set speeds or apertures)

I-8-1 — Enable (active in Tv or Av Modes)

I-8-2 — Enable (ISO speed shifts automatically to hold proper exposure)

This function when initiated will automatically shift exposure settings — even those you've set — to obtain proper exposure when

shooting in Tv or Av Modes. For example, when shooting wide open in Av mode in very bright conditions, if the fastest shutter speed

isn't enough, the aperture will automatically stop down to obtain proper exposure. With ISO Shift (C.Fn I-8-2), the ISO will change if

proper exposure cannot be obtained in any Automatic Exposure mode (P, Tv, or Av). For example, in Tv Mode with a user-set shutter

speed of 1/2000

raise ISO as needed to insure proper exposure — and alert you in the viewfinder of the ISO shift.

sec. and the ISO set to 100, if the light level drops and the lens is already at maximum aperture, the camera will

EOS-1D Mark III Exposure Custom Functions