Replacing The Date/Time Battery - Canon EOS 400D Digital Instruction Manual

Canon digital camera instruction manual
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Replacing the Date/Time Battery

The date/time (back-up) battery maintains the camera's date and time.
Its service life is about 5 years. If the battery is replaced and the date/
time dialog appears, replace the lithium CR2016 battery with a new
one.
The date/time setting will also be reset, so be sure to set the
correct date/time.
(+)
For the date/time battery, be sure to use a CR2016 lithium battery.
Set the power switch to <2>.
1
Open the cover and remove the
2
battery.
Take off the battery holder.
3
Replace the battery.
4
(–)
Insert the battery holder and
5
close the cover.
Make sure the battery is in the proper
+ - orientation.
155

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Questions and answers

Mervyn Carter
February 6, 2025

Is it possible to use an external flash with a Canon EOS 4000D? When I select the external flash option within the menu I get a message as shown in the attached image. If it is possible, which do you recommend?

User image 67a46f3639e99
1 comments:
Mr. Anderson
February 10, 2025

Yes, an external flash can be used with a Canon EOS 400D. The recommended options are EOS-dedicated EX-series Speedlites, which operate like a built-in flash with autoflash control managed by the camera. Other Canon Speedlites, such as EZ/E/EG/ML/TL-series, cannot be used in TTL or A-TTL autoflash mode but may work in manual flash mode if available. Non-Canon flash units can also be used, but the camera synchronizes with them at 1/200s.

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