The zoom is different if it is really the same position on the screenshots.
You can see that the railing posts on the second screenshot is smaller as in the first, also in the first the camera is 3 and a half ground plates away from the char while in the second it is 4 whole plates away.
So it is either a different distance to the stair or the zoom is different.
The only similar thing is the size of the carbuncle mount on both screenshots.

As a sidenote the zoom on every race is dependent on their height. So Lalas have a far smaler scaling of zoom levels like Miqo'te or even Roegadyn.

To show the scaling you need a reference height just beside you or behind you like the posts but you need them right next to you like you want to cuddle them.