Fuji X Secrets

2.4 FOCUSING WITH YOUR X SERIES CAMERA

Most X series cameras use a hybrid autofocus system that combines CDAF and PDAF. CDAF, PDAF, hybrid AF? Let’s clear it up:

• CDAF means Contrast Detection AutoFocus and is a standard in mirrorless cameras. CDAF is available throughout the entire sensor area. It works quite precisely but is not particularly fast.
• PDAF means Phase Detection AutoFocus and is the standard AF in DSLRs. Since your X camera is mirrorless, its PDAF works directly on the sensor. With the exception of the X-T3, PDAF is only available throughout a central portion of the image frame. PDAF is fast and particularly good at tracking moving subjects. It can predict where a moving object will be a split second from now, a feature that can ...