(1) The autofocus is not as fast as more expensive models

Bought this mostly for the 50mm and the F1.8, and because of great price, I did not like the older models because I invested in bigger and larger lenses

This one feels a little nicer and not quite as "cheap" as the older model

The autofocus is louder than more expensive models - this is only relevant if you are doing cinematography, the sound WILL show up in a video.(3

I bought the previous model, the 50mm f/1.8 II, a few years ago and regretted it because of its poor auto-focusing issue

There is a more expensive model (f/1.4) that could be a good upgrade in time.

This one feels a little nicer and not quite as "cheap" as the older model

(1) The autofocus is not as fast as more expensive models

Amazing lens & way better than the M II version by far

Ef 50mm 1.8 worked very well with the Canon EOS 5 D Mark III full frame.

I could say that it's almost as good as its L counterpart

It doesn't quite autofocus as fast as the L and the L isn't that fast

It's great for low light situations if you are looking for a sharp lens and you can't afford the L

It doesn't quite autofocus as fast as the L and the L isn't that fast