I’m often asked why a certain lens has a different field of view on a Canon 60D (or similar) vs. a Canon 1Dx (or similar). It comes down to the size of the sensor inside the camera. The physical size of the sensor has an impact on your photography and understanding this is beneficial to understanding why some types of photography just simply aren’t possible depending on the camera you choose.
Read Jordon Steeles article “Full Frame Equivalence” and Why It Doesn’t Matter for a detailed and very well written explanation. Job well done Jordon… thanks for the time and effort to share this.