Canon EOS 77D (no lens included) 业主指南

200

BULB: Long (Bulb) Exposures

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

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Since long bulb exposures produce more noise than usual, the image 
may look slightly grainy.

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If ISO Auto is set, the ISO speed will be ISO 400.

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When shooting bulb exposures without using the bulb timer, if you use 
both the self-timer and mirror lockup, keep pressing the shutter button 
completely (for self-timer delay time + bulb exposure time). If you let go 
of the shutter button during the self-timer countdown, there will be a 
shutter-release sound, but no picture will be taken. If you use the bulb 
timer under the same shooting conditions, you need not keep holding 
down the shutter button completely.

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You can reduce the noise due to long exposures by setting [z4: Long 
exp. noise reduction] to [Auto] or [Enable] (p.177).

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For bulb exposures, using a tripod and bulb timer is recommended. You 
can also use mirror lockup (p.209) in combination.

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You can also shoot bulb exposures by using Remote Switch RS-60E3 
(sold separately, p.201).

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You can also use Wireless Remote Control BR-E1 (sold separately, 
p.423) or Remote Controller RC-6 (sold separately, p.426) for bulb 
exposures. When you press the remote controller’s release button 
(transmit button), the bulb exposure will start immediately or 2 sec. later. 
Press the button again to stop the bulb exposure.