Using Custom Functions
AEB
WB Bracketing B/A Direction
M/G Direction
0: Standard exposure
0: Standard white balance
0: Standard white balance
-: Decreased exposure
-: More blue
-: More magenta
+: Increased exposure
+: More amber
+: More green
6 Safety shift in AV or TV can be set to 0: Disable or 1: Enable (Tv/Av). When enabled, exposure is automatically adjusted at the last possible moment if the lighting changes. 7 Flash sync speed in AV mode sets the shutter speed to 0: Auto or 1: 1/250sec. (fixed) when using flash in Av mode. When set to Auto, slower shutter speeds are used to lighten the background just as they are in slow sync photography (page 117). Fixing the shutter speed prevents a slow shutter speed when photographing in dim light, so backgrounds will be darker.
Tips • The time it takes to process an image to remove noise is the same as the exposure time. You can’t take another picture while the previous one is being processed so longer exposures mean there will be longer between shots. • An image, even in Live View, isn’t displayed on the monitor until noise reduction processing is complete.
C. Fn II: Image 1 Long exposure noise reduction sets the noise reduction mode. • 0: Off turns off noise reduction for long exposures. • 1: Auto uses noise reduction only when noise is detected in an image. • 2: On reduces noise in all images taken at exposures of 1 second or more. 2 High ISO speed noise reduction can be set to 0: Off or 1: On. When On noise reduction is used at all ISO settings, but has the most effect at high ISOs. At low ISOs, noise in shadow areas is reduced. When On, the frame rate in continuous shooting drops dramatically. 3 Highlight tone priority can be set to 0: Disable or 1: Enable. When enabled, highlight details are improved although noise in shadow areas may be increased. The dynamic range is expanded between 18% middle gray and the brightest highlights. As a result, the gradation between the grays and highlights becomes smoother. This is a good setting for weddings and landscapes since it captures more detail in white subjects such as wedding dresses, clouds, and snow. Also, the ISO range is 200–1600, and to remind you it’s on, zeros in the ISO are displayed in small type on the monitor and in the viewfinder. C.Fn III: Auto focus/Drive 1 Lens drive when AF impossible can be set to 0: Focus search on or 1: Focus search off. When Off, if the camera can’t achieve focus, it stops trying instead of going dramatically out of focus. This setting is especially useful with macro and super telephoto lenses. 2 Lens AF stop button function has settings that control focus, exposure, and image stabilization on super telephoto lenses with AF stop buttons. If you have one of these lenses refer to the manual that came with the lens and page 158 in the Canon 40D user manual. The choices include 0: AF stop, 1: AF start, 2: AE lock, 3: AF point:M->Auto/Auto->center, 4: ONE SHOT-AI SERVO and 5: IS start. 3 AF point selection method gives you three ways to manually select an AF point (page 71): • 0: Normal works by pressing the AF Point button and then the Multicontroller.
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