While fast zooms generally get most of the attention, Canon also makes some excellent slower zoom lenses for people who don't need an f/2.8 aperture or who want to save some weight in their bag or money in their bank account. Two such options are the RF 70-200mm f/4 L IS USM and RF 24-240mm f/4-6.3 IS USM, and this great video comparison takes a look at both to help you choose the right one for your needs.