Canon EOS 7 - Switches and Their Functions; Operation Switches

2. SWITCHES AND THEIR FUNCTIONS
2.1 OPERATION SWITCHES
No. Code Name Function
1 SW1 Focusing/metering Focusing and metering starts at SW-1.
2 SW2 Shutter release Picture-taking starts at SW-2.
3 MAIN1,2,3,4SW Picture-taking mode Selects the picture-taking mode.
selector (Command Dial)
4 SPDN SW Depth-of-field preview Stops down the aperture in the
button Creative Zone modes. Also fires a
modeling flash with the 550EX, MR-
14EX, or 420EX attached.
5 AELK SW AE lock, partial When ON in a Creative Zone mode, AE
metering, FE lock lock takes effect. Partial metering at
center (switchable to focusing point-
linked partial metering with C.Fn 8-1)
takes effect regardless of the set
metering mode. With an EX Speedlite
attached, FE lock takes effect.
6 AFSEL SW Focusing point selector When ON, focusing point selection is
enabled with the Main Dial or focusing
point selection keys. (The selection
method can be altered with C.Fn 11.)
7 MDIA1,2 SW Main Dial Operated in conjunction with other
camera controls (to set exposure
compensation, AEB, multiple
exposures, etc.)
8 FUNC SW Function button Sets the ISO film speed, red-eye
reduction, beeper, multiple exposures,
flash exposure compensation, and
AEB.
9 MES SW Metering mode button Selects evaluative, partial, or
centerweighted metering mode.
10 REW SW Midroll rewind When ON, rewinds the film in midroll.
11 AF MODE SW AF mode selector Selects the ONE SHOT, AI SERVO, or
AI FOCUS AF mode.
12 DRIVE/SELF SW Film advance selector Selects single or continuous shooting,
self-timer, or wireless remote control
operation.
13 SUBON SW Quick Control Dial When ON, the Quick Control Dial
switch operation is allowed.
14 SDIAL1,2 SW Quick Control Dial Operated in conjunction with other
camera controls (to set exposure
compensation, aperture setting in
manual mode, flash exposure
compensation, etc.)
15 CAL SW Eye Control switch Selects the Eye Control’s ON, OFF, or
CAL.
Part 2: Technical Information
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