You can use 2, 3 or 4 columns equal grid. Each image in this gallery type will be cropped to the same size. Gap between images is fully customizable, you can use whatever value you like (examples below comes with 20, 10 and 4px gaps) or use grid without any gaps. Grid is also fully responsive and can be used on standard pages and as a full width gallery.

2 Columns Grid

3 Columns Grid

4 Columns Grid