@Bastian: really nice. Thanks for that info. Really interesting, since you find that version nowhere. I am looking forward to your review.
I own the M-Version (the one without flare) I use it on my Sony a7r3 with TAP (wobbling startet; maybe because of the weight or because I used it intensivley during the last year). Weight is ~510g together with the lens hood (original one from 7artisans). TAP should work until 700g without problems. Therefor I guess the problem is the usage after one year.
I have some photos of the combo here in my dropbox. All other photos are taken wide open. This lens has some character. Min autofocus! distance with tap is 20cm!
