Size for slider

I hope I understood the question:
You can set the slider height from the menu (customize-home page) and if it’s max width.
Since customizr is resposive – choose the maximum screen resolution that you want, and it will fit any lower resolution. like here : https://www.glezer.co.il – works on wide desktop, iPad and iPhone

@jts : I want the exactly size for the best display for my pictures. But thanks a lot !

“best display” for iPhone is not the same as for 2048*768 wide desktop

@jts_il : The best resolution if you prefer, the good height and the good widht. Because there are a zoom on the picture and I don’t like this

On my opinion – image width should be 2048 max, 1024 min

1170 x 500 is the recommended dimension