This is the assembled Lens Align Mark II. Thanks to Michael Tapes for the image.
It’s simple. While the images made with most rigs are sharp, in many cases, they will be that much sharper with more fine detail once a given camera body/lens or camera body/TC/lens combination has been properly micro-adjusted. While some of my rigs are spot on, others have needed front- or back-focusing corrections as high as +/- 12 units.
The Lens Align Mk II; Micro-adjusting Magic
Ever since the introduction of digital camera bodies that feature micro-adjustments for individual lenses, folks--including me--have been searching for a quick, easy way to make those micro-adjustments. When I was working on the 7D
and the Mark IV
User's Guides, I worked hard on developing a make-it-yourself cardboard rig that was a big improvement on the original version. But in reality, it did not offer the needed precision. And in addition to the extremely low cost, the rig took up lots of space--heck, it was huge, and using it was tedious.