Canon has issued a number of DSLR firmware updates to address a lens correction profile bug relating to the EF 70-300mm f/4-5.6 IS II USM.
From the Canon EOS 6D firmware update:
From the Canon EOS 6D firmware update:
Corrects a phenomenon in which when using the camera with the EF 70-300mm f/4-5.6 IS II USM lens, even if lens aberration correction is set to “Enable”, correction will not be applied.
Canon DSLR Firmware Updates Available
| Product | Firmware version |
| EOS-1D X | 2.0.9 |
| EOS-1D Mark IV | 1.1.5 |
| EOS 5D Mark III | 1.3.4 |
| EOS 6D | 1.1.7 |
| EOS 7D | 2.0.6 |
| EOS 70D | 1.1.2 |
| EOS 60D | 1.1.2 |
| EOS Rebel T5i | 1.1.5 |
| EOS Rebel T4i | 1.0.5 |
| EOS Rebel T3i | 1.0.3 |
| EOS Rebel T2i | 1.1.0 |
| EOS Rebel T1i | 1.1.2 |
| EOS Rebel T6 | 1.0.2 |
| EOS Rebel T5 | 1.0.2 |
| EOS Rebel T3 | 1.0.6 |
| EOS Rebel SL1 | 1.0.1 |
| EOS M2 | 1.0.3 |
| EOS M | 2.0.3 |
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