Canon EOS 60D Посібник - Сторінка 24

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Canon EOS 60D Посібник
Licensed to: CengageBrain User
22
David Busch's Canon EOS 60D Guide to Digital SLR Photography
The QCD has a number of functions. You can use it to set the lens opening (aperture)
when using Manual or Bulb exposure settings. It can also be used to add or subtract
exposure from the basic setting ("exposure compensation," as described in Chapter 4).
If you've set an aperture or exposure compensation value and want to make sure it isn't
accidentally changed, switch the lever to the Lock position. (See Figure 1.9.)
WATCH THAT QCD POSITION!
While I was writing this book, I hosted a lighting seminar for neophyte photographers
using cameras of all breeds, and out of 30 photographers in two sessions, no fewer than
four Canon shooters were having trouble setting the aperture when using the Manual
exposure mode I was having them use while working with studio flash units. (Each of
them rarely used Manual.) All four had accidentally set the QCD switch to Lock in the
Set-up 2 menu (if they were 60D owners) or to the On (only) position (if they were
50D or 40D users), disabling the Quick Control Dial. I expect that this happens more
frequently than I suspected, so I'm calling it to your attention once more in these two
sidebars.
Copyright 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
Figure 1.9
The Unlock
button can be
used to activate
a Quick
Control Dial
that has been
locked using
the Set-up 2
menu's Lock
entry.