Hehe, runs on magic, I like that!
Tom, I didn’t want to criticize you, just putting it straight.
On easy objects with a perfect image set, you probably won’t need exif grouping. Howecer, mine are usually comlicated with many really difficult corners, so a perfect image set is by definition not possible. That’s why I leave it on on principle so I don’t lose cameras in those tight spots. With no grouping, there are often problems in those corners, which result in either no alignment or super weird distortion models. Grouping helps all that.
Steven, I need to give the 1,0 repro error another chance, thanks for mentioning that. I discarded it because in my opinion it doesn’t help much with alignment, but it might indeed help with noise.
And also thanks for mentioning the article, I need to skim that in a quiet minute. Vlad was quite active here on the forum a while ago and really knows his stuff. However, he is a sculpture /small objects guy and that has slightly different requirements and challenges than large scale stuff and especially interiors (the hardest), which we are all interested in.