i've done 3 rolls of films with the DA*55.
From f2 to f22 : no vignetting at all.
From f1.4 to f2
with hood : subtle vigneting with a value around 0.3 - 0.7 EV that is very soft and progressive in the extreme corner (around 5-7% of the width of the frame.)
See below :
DA*55 @f1.4, 1/60, MZ-5n, Ilford HP5+ push 2 stops @1600 iso. light bulb of 100watts at 2m above Florent.
At f1.4 without hood : very subtle vigneting of 0.3 EV (less than on the picture above.)
DA*55 @1.4, 1/125, MZ-5n, Ilford HP5+ push 2 stops @1600 iso. Sunset light only.
To conclude :
I think we can say DA*55 without hood : +++, and DA*55 with hood ++.
Definitely a keeper
it completely remplace my A50/1.7 now.