I have a feeling that they might not like my customer response.
I’m a bit disappointed, that after purchasing over $25k worth of Canon kit, all three of my ‘big’ purchases have been faulty. 5DMkiii, short in the battery terminals, 70-200 IS, the auto focus stopped working. Now, a 4 yr old 100-400 Auto focus won’t lock. I was told this is a known issue, but not wide spread enough to send out a recall, and is now going to cost me $640 to have fixed. Not happy about this.
You read that right. This “Jumping focus/Aperture 00” is a known issue, well documented, but not wide spread enough for Canon to issue a recall or fix gratis. If I wasn’t so heavily invested in Canon, I might be tempted to jump ship.