Hi, thanks, it can be completely collapsed into the body, no problem.
At f2.5 itīs sharp enough, no complains!
The only issue is it shifts focus a lot!
I managed to adjust focus to something usable, but it was tricky and slow business!
check this shot this is how i finally adjusted focus on the lens, shimming and praying...
The rangefinder was focus on the 1 feet red mark.
Itīs a100% crop or more...