Megadap EFTZ21 firmware v1.25

Megadap · Released May 31, 2024 · First seen Jul 24, 2026

v1.25 is not the latest firmware for the Megadap EFTZ21: the current version is v1.27 (December 5, 2025). Go to v1.27

What's in this update

  1. Optimize the Canon EF 17-40mm F4 continuous​ focus (focus tracking) fluency.
  2. Resolves an issue where recording would interrup​t at some frame rates when recording video.

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Other versions for this product

See the full firmware history for the EFTZ21