Are These Strange Lenses Worth Buying?

Canon has been releasing some mightily impressive lenses the last few years, but two of the more unique options we have seen are the RF 600mm f/11 IS STM and RF 800mm f/11 IS STM. They are quite affordable, however, offering photographers the chance to use extreme focal lengths without breaking the bank. How do they hold up in practice? This great video review takes a look at both of the lenses and the images they produce.