Canon 100mm S-mount f/3.5 v2
cute, eh? this is v2 on the Canon site, though there are actually something like 7 versions, this is the lightest of them by far, at 184 grams, the late black ones being 220 grams. Optics identical in all versions.
here Dante Stella review:
test wide open f/3.5
100% far right
No PP of any kind straight out of camera jpeg
Now f/8 or more
Contrast way up
this little beast looks pretty good!