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Dual Pixel Autofocus

What is Dual Pixel Autofocus (DPAF)?

Dual Pixel Autofocus (DPAF) is an advanced phase-detection autofocus (PDAF) system built directly into the camera’s image sensor. Unlike traditional contrast-based autofocus, which can be slow and prone to hunting, DPAF enables fast and accurate focusing by using every pixel on the sensor to detect phase differences.

 

Each pixel is split into two photodiodes, allowing the camera to compare signals from both sides and achieve focus nearly instantly. This is particularly useful for live view and video shooting, where mirrorless and DSLR cameras with contrast-detect AF typically struggle.

Why Would You Need It?

📸 For Fast and Smooth Autofocus in Video

  • Traditional autofocus in video can be slow or unreliable, leading to focus hunting.
  • DPAF provides smooth, cinematic focus transitions without distracting pulsing.
  • Ideal for interviews, press coverage, and documentary work.

📷 For Accurate Focus in Live View Photography

  • Many DSLRs slow down in live view mode because they switch to contrast-detect AF.
  • With DPAF, cameras focus just as fast in live view as when using the optical viewfinder.
  • Perfect for mirrorless cameras or DSLR shooters relying on LCD for composition.

🎯 For Reliable Face and Eye Detection

  • DPAF works exceptionally well with face and eye-tracking autofocus.
  • Ensures sharp focus for portraits, press events, and fast-moving subjects.

🔭 For Subject Tracking in Sports and Action

  • Dual Pixel AF maintains focus lock on moving subjects more effectively than contrast-detect AF.
  • Useful for sports, protests, and live news coverage, where subjects move unpredictably.

Which Cameras Have Dual Pixel Autofocus?

  • Canon pioneered Dual Pixel AF, integrating it into many of their DSLRs, mirrorless, and cinema cameras (e.g., Canon EOS R5, 1D X Mark III, C70).
  • Some smartphones and mirrorless brands (like Samsung and Sony) use similar phase-detection AF but with different implementations.
  • Nikon’s Z-series uses a hybrid phase-detection system, but it’s not Dual Pixel AF.

Final Thoughts

If you shoot a lot of video, live view stills, or action photography, a camera with Dual Pixel AF can significantly improve autofocus speed and accuracy. However, if you primarily shoot through the optical viewfinder with a DSLR like your Nikon D5, its dedicated phase-detect AF module will still be faster in high-speed environments.

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Dual Pixel Autofocus

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Hi I'm Monique

Personal and business brand photographer and educator, super passionate about empowering business women and men to have a positive self perception, with the right tools and guidance so they can share their gifts with the world.

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