I have received advice on Aperture to Lightroom switch before, but now something more specific. I have a MacBook Pro with a 500GB HD, with over 400GB of raw images in my Aperture library. I don't have enough space on the HD to install Lightroom and export the Aperture images into it so have bought another later MacBook Pro with a 2TB hard drive. However that has El Capitan as its OS system so I can not move my Aperture software to this to sit alongside Lightroom. Can I connect the two with a thunderbolt cable and transfer the images out of Aperture and across to the new computer directly into Lightroom. Theoretically I am told this is possible but no one I know has done this. Any advice would be much appreciated.
In a AppleStore this week and talking to an advisor who is an Aperture specialist, he advised me, despite what I had read in some places, and indeed been told in other AppleStores that Aperture, well the last version, will run and work ok using El Capitan. I downloaded it to the new MacBook from my App purchases and it works. So now all I have left to do is export my Aperture images into Lightroom.