Thomas Fleissner, Director of Sales

PDAF (Phase-Detection Auto Focus) is a well-known technology for quick and accurate autofocus.

However, do you know how good it is compared to the same sensor without PDAF?

Contrast based Autofocus

The most standard method for autofocus is Contrast based autofocus. By moving the lens back and forth, you can find the right focus. This is basically the same way when you operate a vintage camera (with no USB, no battery). Instead of using your eye to indicate the correct focus, Contrast based autofocus detects the correct focus by analyzing the edges of the objects captured by the sensor, programed by the ISP (Image Signal Processor).

Phase-Detection Autofocus

If you found the Contrast based Autofocus unsatisfying, I am sure you will love Phase-Detection Autofocus (PDAF). PDAF technology gives the right focus by using data provided by pixels on the sensor dedicated to this function. The ISP then processes this algorithm and manages the lens position so that you can get the right focus right away.

Would you like to test this yourself?

Our new camera kits have the same Sony IMX258 PDAF sensor along with well-calibrated PDAF capability and fully-tuned image quality. Please access these kits’ pages for further information. Here is the video!

Links to learn more

THSCU101 13Mp PDAF UVC Camera

THSCM101 13Mp PDAF Linux Camera for NXP i.MX8

Embedded Camera - Autofocus - PDAF