Specific Shutter Speeds And Aperture Values - Canon EOS M100 Help Manual

Reducing Noise at Slow Shutter Speeds
● The following [Long exp. noise reduction] items are available.
OFF Disables noise reduction for long exposures.
Applies noise reduction if the noise that tends to
AUTO occur in long exposures at shutter speeds of one
second or slower is detected.
Always applies noise reduction at shutter speeds of
ON
one second or slower.
● There may be a delay before you can shoot again, as the camera
reduces noise in images.
● Images shot at ISO speeds of 1600 or higher may be grainier with
[Long exp. noise reduction] set to [ON] than [OFF] or [AUTO].

Specific Shutter Speeds and Aperture Values

Specific Shutter Speeds ([Tv] Mode)
● There may be a delay before you can shoot again when [Long exp.
noise reduction] is set to [ON] or [AUTO] and the shutter speed is
1 second or slower, because images are processed to remove noise.
● We recommend deactivating image stabilization when shooting at slow
shutter speeds on a tripod.
● Maximum shutter speed with the flash is 1/200 second. If you specify
a faster speed, the camera will automatically reset the speed to
1/200 second before shooting.
● Orange display of the aperture value when you press the shutter
button halfway indicates that the standard exposure has not been
obtained. Adjust the shutter speed until the aperture value is displayed
in white, or use safety shift.
● [ ]: Time value
Specific Aperture Values ([Av] Mode)
● Orange display of the shutter speed when you press the shutter button
halfway indicates that the standard exposure has not been obtained.
Adjust the aperture value until the shutter speed is displayed in white,
or use safety shift.
● Maximum shutter speed with the flash is 1/200 second. To avoid
exceeding 1/200 second in flash shots, the camera may adjust the
aperture value.
● [ ]: Aperture value (size of the opening made by the diaphragm in
the lens)
● The aperture changes only at the moment you shoot, and it remains
open at other times. For this reason, the depth of field shown on the
screen looks narrow, or shallow. To check the area in focus, assign [ ]
(depth-of-field preview) to a button and press it.
Specific Shutter Speeds and Aperture Values ([M] Mode)
● Available aperture values vary by lens.
● When the ISO speed is fixed, an exposure level mark based on
your specified value is shown on the exposure level indicator for
comparison to the standard exposure level. The exposure level mark
is shown as [ ] or [ ] when the difference from standard exposure
exceeds 3 stops.
● The ISO speed is determined and screen brightness changes when
you press the shutter button halfway after setting the ISO speed to
[AUTO]. If standard exposure cannot be obtained with your specified
shutter speed and aperture value, the ISO speed is displayed in
orange.
● After you set the shutter speed and aperture value, the exposure level
may change if you adjust the zoom or recompose the shot.
● When the ISO speed is fixed, screen brightness may change
depending on your specified shutter speed and aperture value.
However, screen brightness remains the same when the flash is up
and the mode is set to [ ].
● Exposure may not be as expected when the ISO speed is set to
[AUTO], because the ISO speed is adjusted to ensure standard
exposure relative to your specified shutter speed and aperture value.
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