MacVoices #20111: Jeff Carlson On Luminar 4 From a Photographer’s Perspective (Part 2) Jeff CarlsonĀ covers more photo editing tips from his latest effort, The Photographer’s Guide to Luminar 4. In the second part of our discussion, we talk about RAW files, whether they come from a DSLR or from your iPhone, and the difference it can make to your final result. Jeff recommends some apps to shoot with, talks about the latest updates to the program, and provides a discount code for MacVoices viewers and listeners