Canon EOS R, Руководство для продвинутых пользователей

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Custom Function Settings
Same exposure for new aperture
Maximum aperture may decrease (the lowest f/number may increase) in
[
a
] mode (manual exposure shooting) with ISO speed set manually (except
when set to ISO Auto) if you 1. Change lenses, 2. Attach an extender, or 3.
Use a zoom lens with a variable maximum aperture. This function prevents
the corresponding underexposure by adjusting ISO speed or shutter speed
(Tv) automatically to maintain the same exposure as before 1, 2, or 3.
[OFF] Disable
[ISO] ISO speed
[ISO/Tv] ISO speed/Shutter speed
[Tv] Shutter speed
o
Does not respond to changes in effective aperture from changes in
magnification when macro lenses are used.
o
Cannot provide the same exposure as before 1, 2, or 3 if [ISO speed]
is set and the exposure cannot be maintained at speeds in [ISO speed
range] .
o
Cannot provide the same exposure as before 1, 2, or 3 if [Shutter
speed] is set and the exposure cannot be maintained at speeds in [
8
2:
Set shutter speed range] .
o
Standard exposure is updated to the exposure at the moment the
camera turns off if the camera turns off (as by setting the power switch to
<
2
>) while maintaining exposure after you have performed 1, 2, or 3.
o
Also responds to changes in the highest f/number (minimum aperture).
o
The original exposure setting is restored if you perform 1, 2, or 3 with
[ISO
speed] or [Shutter speed] set and do not adjust ISO speed, shutter
speed, or aperture before returning the camera to the original state,
before 1, 2, or 3.
o
Shutter speed may change to maintain exposure if the ISO speed
increases to an expanded ISO speed when [ISO speed] is set.