How do I export Lightroom photo files from Lightroom 5.7 running on an 2010 Apple IMac, and with a Lexar CF/SD reader attached.
Choose Hard drive under Export to at the top of the Export dialog.
Then choose Specific folder under Export location > Export to:, click Choose and navigate to the card.
Note: Images exported to a 'camera' card will not be visible in the camera!
They will only be available to the computer system when reconnected in the card reader..