Thanks, Artie, no pressure – no one works harder at this stuff than you do; I only asked because in your old tutorial there are images that illustrate your instructions, none of which appear in my monitor even though I’ve used 3 different browsers. I can wait until the new tutorial comes out, and then buy the LensAlign Mark II contraption from your store. What do you you think of the great big long ruler accessory for The Mark II with Focus/Tune they’re now selling (for more money, of course)? Have you tried it and if so, is it worth considering buying?
I wish I could find the reasons you’ve already given on your blog why the 5D Mark IV is now your favorite bird photography camera, but that’s another subject…

There should be some older tutorial on line but the new one will be much, much better. Not sure when though. I am doing my best 🙂

later and love, artie