>>2792769Hopefully this isn't too confusing - camera lens focal lengths (basically a proxy for field of view) are usually expressed in "full-frame equivalent". A shorter focal length gives a wider field of view.
The lenses on your iphone are the equivalent of 13, 24, and 120 mm. Since that camera has an apsc sensor, not full frame, the lenses cover 24-77 mm and 84-320 mm. So you lose the ultra-wide, but gain a lot on the telephoto end. I find anything below 24mm isn't very useful for landscape, and you could just take a panorama if you want a wider field of view.
Sony also makes an 18-135 mm (28-207 mm full frame eq.) lens that's pretty compact, but it might be a bit much for your budget unless you find a really good deal on a used one.
