Hey guys. I have a lens Cal on order. I mainly want to calibrate my Tamron 150-600 get with my Canon 80d. The lens was calibrated at Tamron maybe two years ago and I feel like it may be back focusing. I have a few questions (which may be answered in the products guide, but I'd like an understanding before I get it). How far away should I calibrate the lens at both the closest and infinity? Is there a certain aperture I shoot at? Since both the lenscal and camera are going to be on tripods I'm assuming shutter speed doesn't matter. I'll turn off VC on the lens as well. Are there any other settings I need to worry about? Any tips? Thank you. I will also be calibrating these Canon lenses. 50mm stm, 24mm stm, 55-250 stm, 18-55 stm. Will I do these in the same manner, same distance as the 150-600?