You asked

Is the canon rf 24 105mm f 4 7 1 is stm good for landscape?

Yes, it's a sensible landscape lens, with one caveat. Its f/4-7.1 aperture suits landscape work, because you'll usually stop down to f/8-f/11 for depth and sharpness anyway. It's also stabilised, which helps when you're handholding in the blue hour.

The catch is the wide end. At 24mm on full frame, it's not as expansive as the wide zoom that landscape shooters often reach for, around 16-35mm. Its strength is covering most scenes, from wide views down to layered hills at 105mm. If you want big skies and strong foregrounds, pair it with a wider lens.

It fits full frame bodies such as the Canon EOS R5 and Canon EOS R6. For a first landscape kit, the lens guide explains why a standard zoom is the place to start.

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