When I try to take a picture using Panorama mode, preview screen is blur than other mode.

[Q : When I try to take a picture using Panorama mode, preview screen is blur than other mode. Why is this?]
A: The Galaxy S10’s Ultra Wide lens captures scenes wider than a normal lens thanks to its 123° angle of view, which is similar to the human eye’s 120° angle of view. This lets you take panorama shots that are wider than normal.

Due to the characteristics of ultra wide lens, it is possible to capture a wide area, but the amount of light is less and the noise is increased, so the image may be slightly blurred compared to the wide lens. This is an optical characteristic of an ultra wide lens.