CanonEF-S 17-55 mm f/2.8 IS USM Lens
So when you see a photographer on the streets with a white lens attached to their camera, you know for sure that they are using a Canon's L-series lens.
While no one will stop beginners from having an L-series lens as their first-ever lens, it is often better to start with non-L-series lenses to learn how price affects the image quality. If I had just jumped right into using L-series lenses, I would not today genuinely appreciate how stunning image quality these premium lenses can produce.
This 17-55mm lens is obviously not an L-series lens, but it isn't technically very far away from them. This 17-55mm lens has an image stabilisation feature alongside a stunning f 2.8 aperture across the whole focal length, which means you can easily take photos in very dark and dimly lit rooms.
If you consider becoming a wedding photographer, this would be a solid lens to have as that 2.8 aperture will allow you to take photographs of even the darkest churches out there. This 17-55mm f 2.8 lens was my go-to lens for over five years, and it never let me down.
In 2021 it still seems to be the best non-L-series lens out there, and while it does come with a pretty hefty price tag, it can quickly become your most loved lens as it is so versatile. And if you don't even care about having the option to zoom very far away, then this lens could potentially even be the only lens you need.