Canon EOS-1Ds Mark III Biała księga - Strona 17

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Również dla Canon EOS-1Ds Mark III: Instrukcja obsługi (42 strony), Instrukcja obsługi (19 strony), Wskazówki i techniki (35 strony), Instrukcja obsługi produktu (39 strony), Instrukcja obsługi produktu (36 strony), Instrukcja obsługi oprogramowania (50 strony), Broszura (39 strony), Podręcznik (25 strony), Broszura (2 strony), Broszura (32 strony), Podręcznik funkcji (21 strony), Konstrukcja i wydajność (25 strony), Specyfikacje (2 strony)

Having the same drive mechanism as the EOS-1D Mark III, the EOS-1Ds Mark III's maxi-

mum continuous shooting speed is 5 fps in both the One-Shot AF and AI SERVO AF

modes. This rate is achieved with 8-channel reading, DDR-SDRAM (twice the capacity of

the EOS-1Ds Mark II's), and Dual "DIGIC III" Image Processors. Continuous shooting

speed can also be adjusted with C.Fn III-16 [Continuous shooting speed] as follows:

High-speed continuous within 2 to 5 fps, and low-speed continuous within 1 to 4 fps.

Metering and

The metering optics have the metering lens and 63-zone metering

Exposure Control

sensor positioned at the rear of the pentaprism. The 19 AF points in

the Area AF optimally match the metering sensor's zones.

The same 4 metering modes as in the EOS-1D Mark III are provided.

Metering Sensor

Partial metering covers about 8.5% of the viewfinder area at the

center, and spot metering about 2.4% at the center.

Because the metering area within the viewfinder is smaller than that of the EOS-1D Mark III,

the algorithm has been optimized for the EOS-1Ds Mark III. However, the basic algorithm

is the same as the EOS-1D Mark III's.

Metering Zones

Evaluative/Center-weighted

Partial metering

Spot metering

average metering

* C.Fn I -7-1 enables AF point-linked spot metering.

ISO bracketing is not provided in either the EOS-1Ds Mark III or the EOS-1D Mark III.

With the Ec-A, Ec-B, Ec-I, and Ec-L interchangeable focusing screens, only spot metering

outside the center and center-weighted average metering is possible. Since the prism

centers of these focusing screens are plainly transparent, an error will occur with evalua-

tive metering, partial, and center spot metering.

The Custom Functions are the same as the EOS-1D Mark III's. The Custom Function

names, settings, numbers and so forth are the same. The only exceptions are C.Fn I-3

[Set ISO speed range], C.Fn I-8-2 [Safety shift: Enable (ISO speed)], C.Fn I-15-1 [Flash

sync. speed in Av mode: 1/250 sec.], and C.Fn III-16 [Continuous shooting speed]. Either

the setting values or control values have been changed to suit the EOS-1Ds Mark III's

specifications.

IV. DISCUSSION OF NEW AND IMPROVED FEATURES