jordipordi02,
Your Canon R10 uses native RF lenses and uses lenses that have an RF mount.
The lens that your friend has, probably not an RF lens.
You can use EF lenses if you buy an EF-EOS R lens adapter. These adapters run about $130, and allows you to use any Canon lenses in the EF or EF-S lineup.
For concerts, you are probably going to be in pretty dim lighting, so you'll want a lens that has a wide aperture - something in the f/2.8 range or so. Larger, or wider apertures will give you greater light-gathering capabilities.
You can't go wrong with an RF f/1.8 50mm lens. They run about $130 also. Everyone needs a 50mm prime lens in their life. 😀
The downside is that because it is a prime lens, there is no zooming. If you want to get closer, or make your subject t look larger, you have to physically move closer. That may or may not be possible in a concert setting.
For a telephoto lens, where you zoom with your lens instead of your feet, there are the 24-105mm, or the 18-150mm options. The both run around $500 on the used, or refurbished market.
For portraits, there is a lot of debate out there on what makes the best portrait lens. Some like 50mm, some like 85mm, and some like 135mm. I think it's a matter of personal choice.
Steve Thomas
