Not sure where to post this, as it concerns both the lens and the camera.
I have some IQ issues, mainly sharpness, when using this lens - 100-400 II with the 7D M2. I tried to do AF MA using DotTune, using FoCal, and both show that the setting should be around +1 (means it is spot on). I decided to ship them to Canon for calibration, plus to add a Canon 1.4x III TC.
What is the best way to pack the three for shipping? Should I have both the lens and the TC mounted on the camera? Or should I pack all three items separately and ship in a single box? Have anybody done that? I have shipped cameras and lenses for repairs before, but always separately. Any suggestion?