Nikon Lens / Autofocus Errors

Lens & Focus System Troubleshooting Guide

Autofocus System Errors
AF
Autofocus Failure
  • Switch to manual focus and test lens response.
  • Clean lens contacts carefully.
  • Check for obstruction in focus mechanism.
  • Try another lens to isolate issue.
AF-S
Focus Lock Failure
  • Ensure proper focus point selection.
  • Check lighting conditions for focusing.
  • Reset autofocus settings.
  • Test focus in single-point AF mode.
Continuous Focus Errors
AF-C
Continuous Focus Error
  • Switch to single AF mode and test.
  • Check subject tracking settings.
  • Update camera firmware if available.
  • Test with different lens if possible.
Lens Communication Errors
ERR LENS
Lens Communication Issue
  • Remove and reattach lens securely.
  • Clean lens electrical contacts.
  • Try another compatible lens.
  • Inspect lens mount for damage or dust.
Mechanical Lens Errors
ERR ZOOM
Zoom Mechanism Jam
  • Gently extend and retract zoom ring.
  • Check for sand or debris in barrel.
  • Avoid forcing zoom movement.
  • Service lens if mechanical jam persists.
Note: Autofocus and lens communication errors are often caused by dirty contacts or mechanical obstruction.