Review on 📷 AutoFocus Lens Calibration Tool - Compatible with Most DSLR Cameras: Focus Pyramid by Tony Miller

I confess I haven't tried it yet. However, everything points to a good mechanical way of focusing. However, this takes a lot of time, so I would suggest planning a day. All reviews were good. It's only cardboard and smaller than I thought it would be, but the print is crisp and fresh. I don't think you'll regret it if you're willing to take the time. I will update my review when I actually use it. For now, I'm just giving you my thoughts to help you make decisions.