Canon EOS EOS 30D Livre blanc - Page 22

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Drive Speed and Burst

Performance

Viewfinder

The EOS 30D has a new drive mode called "Low-Speed continuous." Its maximum speed

is 3 fps. This feature has been added in response to users' interest in specifying the

number of continuous shooting frames and their request for longer continuous shooting

even if fewer frames per second is the consequence. Users now have a choice of four drive

modes; the other three are single, high-speed continuous and self- timer. An H mark has

been added beside the continuous shooting mark on the LCD panel. In the Creative Zone

mode, all four drive options are settable. In the Basic Zone modes, single, high- and

low- are set automatically depending on the shooting mode and self-timer is settable.

A maximum continuous shooting speed of 5 fps can be attained in both the One-Shot

AF and AI SERVO AF modes thanks to the CMOS sensor with 4-channel signal reading

and the DiG!C II Image Processor.

With the EOS 20D and a DC motor (non-USM) lens, the maximum continuous shooting

speed was 3.5 fps in the AI SERVO AF mode. An improved lens-drive algorithm has

made it possible for the EOS 30D to achieve 5 fps under the same conditions.

An improved image processing sequence, in particular enhanced memory manage-

ment during image processing, has increased the burst capacity of the EOS 30D to 30

frames during high-speed continuous shooting in the JPEG Large/Fine mode, even

though the buffer memory capacity is the same as that of the EOS 20D. Also, in the

RAW and RAW+JPEG modes, a different image processing method is used so that the

maximum burst during high-speed continuous shooting is increased to approximately

11 shots in RAW and approximately 9 shots in RAW+JPEG Large/Fine. (The actual maxi-

mum burst depends upon shooting and processing conditions and the type of CF card in

use.) In the EOS 20D, the maximum burst in both RAW and RAW+JPEG is 6 shots. The

maximum burst is displayed at the bottom right in the viewfinder. "9" is displayed if the

maximum is 9 shots or higher; a number from "8" to "0" is displayed if the maximum is

fewer than 9. The maximum burst is displayed even when the drive mode is Single or

Self-timer or if no CF card is installed. In the B/W mode, the maximum burst will be

higher than when shooting is in color.

Image-

recording

High-Speed

Quality

continuous shooting

100

105

220

• Continuous shooting is possible until the CF card becomes full.

The viewfinder's basic optical construction, superimposed

AF point display, Precision Matte focusing screen and

specifications (95% coverage vertically and horizontally,

0.9x magnification with 50mm lens at infinity with –1

diopter, 20mm eyepoint, -3.0 to +1.0 diopter adjustment

range) are the same as the EOS 20D's. The FE lock icon,

also on the EOS 5D, is an addition to the information display,

allowing FE and AE lock to be indicated separately. Because the EOS 30D has a new

V. PERFORMANCE, DESIGN AND CONSTRUCTION

Maximum Burst

Low-speed

continuous shooting

100

165

240

850*

Microscopic view of Precision

Matte focusing screen