Hello Jasem,

I've a couple month ago proposed a patch for the gphoto drv implementing the mirror lock feature for Canon without serial shutter.
For all recent Canon there is no pre-requisite on a serial cable so you must avoid this additional cable.

FYI, Since then, i've tested my code for Canon 7D, 7DmkII, 6D with succes.

Regards,
HoxCa

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