There are two lenses I REALLY want for my Canon EOS XS.
The first is this one, Canon EF 70-200mm f/4 L IS USM Lens for Canon Digital SLR Cameras. It’s an amazingly sharp lens. The image stabilization rocks, too.
They both make great portrait lenses. The f2,8 will however give you better outcomes in lower light situations.
These slippers have given her a ton of relief. Give them a try!