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Firmware for 100-400mm F/4.5-6.3 Di VC USD (Model A035) for Canon
Model Product Mount Latest Version Last Update Date
A035 100-400mm F/4.5-6.3 Di VC USD Canon Ver.3 2019.2.19
Ver.3

Enable general operations on Canon EOS R by the firmware updating.
[NOTE] Canon Mount Adapter EF-EOS R is required to attach the lens to Canon EOS R.

Updated Serial Number:
014551 or later
Ver.2

This update improves the following:
1. VC operation
2. AF follow-up performance

Firmware for 100-400mm F/4.5-6.3 Di VC USD (Model A035) for Nikon
Model Product Mount Latest Version Last Update Date
A035 100-400mm F/4.5-6.3 Di VC USD Nikon Ver.2 2018.9.18
Ver.2

This update improves the following:
1. VC operation
2. AF follow-up performance

For information on the lens update service, please click here.