Canon EOS Rebel T5i 18-55mm IS STM Lens Kit 手册

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a

: Manual Exposure

To obtain a correct flash exposure, the flash output will be set 
automatically (autoflash exposure) to match the manually-set aperture. 
The shutter speed can be set from 1/200 sec. to 30 sec. or <BULB>.

A bulb exposure keeps the shutter open for 
as long as you hold down the shutter button. 
It can be used to photograph fireworks and 
other subjects requiring long exposures.
In step 3 on the preceding page, turn the 
<6> dial to the left to set <BULB>. 
The elapsed exposure time will be 
displayed on the LCD monitor.

I

 

In [z2: Auto Lighting Optimizer], if the checkmark <X> for [Disable 
during man expo] is removed, it can be set in the <a> mode (p.125).

 

When ISO Auto is set, you can press the <A> button to lock the ISO speed.

 

After recomposing the picture, you can see the exposure level difference 
on the exposure level indicator (p.22, 23) compared to when you pressed 
the <A> button.

 

Do not point the camera toward an intense light source, such as the sun 
on a sunny day or an intense artificial light source. Doing so may 
damage the image sensor or the camera’s internal components.

 

Since bulb exposures produce more noise than usual, the image may 
look a little grainy.

 

When [z3: Long exp. noise reduction] is set to [Auto] or [Enable], 
noise generated by the long exposure can be reduced (p.127).

 

If ISO Auto is set, the ISO speed will be ISO 400 (p.94).

 

For bulb exposures, using a tripod and Remote Switch (sold separately, 
p.308) is recommended.

 

You can also use a remote controller (sold separately, p.307) for bulb 
exposures. When you press the remote controller’s transmit button, the 
bulb exposure will start immediately or 2 sec. later. Press the button 
again to stop the bulb exposure.