I was wondering if scopes can have 7 or 8 increase in magniication (1-8x, 4-28x...) why can't thermals. I understand limitations in length, but a thermal with a 60 focal length lens and 1-8x magnification would be amazing, especially with 1-4x digital zoom. Wide field of view for up close and zoom for longer range. Pretty much throw a thermal sensor behind a quality optic.