For those who do more at night than sleep, these lenses help you see what you want to see without blinding those in your group. It would be nice if these colors were built into the Saint--on a rotary housing-- so that you did not need to carefully pack the lenses with you, but the Saint is the best (too bad they discontinued it), so the lens issues are tolerable--at least they make them!
Pros: Every color you need
Cons: Cost, storage/carrying difficult
This review was written in the old system and had content requirements that are different than reviews written today.