OM System Tele Converter EC-20
firmware v1.1
OM System · Released Dec 19, 2007 · First seen Jul 5, 2026
v1.1 is the latest firmware for the OM System Tele Converter EC-20, released December 19, 2007.
What's in this update
- Improved the focus precision when using the ZUIKO DIGITAL ED 90-250mm F2.8 lens.
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