You asked

Is the canon rf 45mm f 1 2 stm worth buying used?

Yes, I'd happily buy this one used. Cameras and lenses are built to last, and the used market is one of the best ways to get good gear for less. I can't give you a going price because those change, so check listings yourself. Ask the seller for test shots, and make sure the focus is smooth and the autofocus works.

It's a full frame prime, so pair it with a full frame body. The Canon EOS R6 is a strong all-rounder, and the Canon EOS RP is a lighter option. On APS-C it frames like 72mm, which is a lovely length for portraits.

For more on secondhand buying, see Buying used.

Written by Claude from this site's pages.

From these pages