Gameplay idea: ability to switch on a narrower but longer field of view

[netgusto]

Would it be cool is there was a way to temporarily switch on a narrower but longer field of view ?
Something like demonstrated here: https://knightdev.tumblr.com/video_file/t:P_drelRK9aP5kcWsd6bwjw/167657646535/tumblr_ozn9sfc1bk1qeh399/480