Canon Firmware Updates: EF 400mm f/4 DO IS II & 100-400mm f/4.5-5.6L IS II USM Lenses

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Canon released the new firmware update version 1.0.9 for Canon EF 400mm f/4 DO IS II & EF 100-400mm f/4.5-5.6L IS II USM Lenses. You can follow the links below to download the firmware updates.

Download links:

Canon EF 400mm f/4 DO IS II USM Lens Firmware Version 1.0.9

Firmware Version 1.0.9 incorporates the following enhancements:

  • Fixes a phenomenon, in rare cases, the IS mechanism may cause the image to jump.

Canon EF 100-400mm f/4.5-5.6L IS II USM Lens Firmware Version 1.0.7

Firmware Version 1.0.7 incorporates the following enhancements:

  • Fixes a phenomenon, in rare cases, the IS mechanism may cause the image to jump.

Canon EF 100-400mm f/4.5-5.6L IS II: $2,399 at Amazon, B&H, Adorama.

Canon EF 400mm f/4 DO IS II USM Lens: $6,899 at Amazon, B&H, Adorama.

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