I have an 80d and the shutter want open on b mode in total darkness but will when there is some ligh

[RichardMyers]

80d

[Anonymous · Accepted solution]

If you have autofocus selected on the lens, then you need enough light to achieve focus in order to take the photo. If you put the lens in manual focus mode, then the shutter should open in darkness.

[RichardMyers]

Thank you!