You asked
Best portrait lens for the canon eos 760d?
For portraits on the 760D, I'd start with the Sigma 50-100mm f/1.8 DC HSM Art. It frames like 80-160mm on full frame, and the f/1.8 aperture gives you the soft background that makes a portrait pop. It's my first pick.
If you want more reach, the Canon EF 70-200mm f/2.8L IS II USM (like 112-320mm) gives you a tight, compressed look from further away. For a flexible option that covers both wider group shots and closer portraits, try the Canon EF 24-70mm f/2.8L II USM (like 38-112mm).
Whichever you pick, remember that light matters more than any lens. A window and a little careful positioning will do more for your portraits than the glass alone. For more on choosing, see Portraits.
Written by Claude from this site's pages.