Connect through your cable to mac
In mac in the right corner we you will see search
Type
Image Capture
In the list shows Image capture app ... Open that
Just in case If the device is locked with a passcode, enter it.
In
Image Capture,
Use the buttons at the bottom of the Image Capture window to view the thumbnails as a list or as icons
From the Import To pop-up menu, choose where to save the images
To import only some of the photos, select those photos, then click Import.
Select “Delete after Import” to remove the items from the device after transferring them to your computer. You can also select individual items on your device, then press the Delete key on your keyboard.
More details you can see here
https://support.apple.com/kb/PH17894?locale=en_GB