Megadap ETZ21 Pro
firmware v1.33
Megadap · Released Jan 3, 2024 · First seen Jul 24, 2026
v1.33 is not the latest firmware for the Megadap ETZ21 Pro: the current version is v2.04 (December 5, 2025). Go to v2.04
What's in this update
- Improve battery draining issue when used with certain lenses
- Improve focusing performance of telephoto lenses e.g. Sony FE 300mm f/2.8 and 70-200mm FE II, on the telephoto end
- Improve overall adapter stability
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