...but never dared to ask. Here's your chance! Even though the new X20 has an X-Trans sensor, EXR sensor cameras are still quite popular. Fuji's X series includes three models featuring an EXR sensor: the X10, the XF1 and the X-S1 superzoom bridge camera. However, there are also plenty of other EXR camera models (like the brand-new HS50EXR), and the concept applies to these cameras, as well. If you know one, you basically know all of them. But getting to know one can be tricky, as the user manual doesn't reveal much about EXR's essence—or how it actually works and what that really means for you as a practical shooter. I've always had a soft spot for EXR technology. It's innovative. It's far from perfect (yep, it has issues—ask me, if you don't know which ones). It can be complicated (or look more complicated than it actually is). A few weeks ago, I even had dinner with the guy who invented it. Do you know your EXR? How it works? When and how to use it? Why there are three different RAW formats in every EXR camera? Where and how to process the RAWs? If not, here's your opportunity to ask and fill the blanks.