Out of these 2,
5442 Z4E - varifocal up to 32mm - anything up to 80-100 feet (personally I wouldn't go past 60 feet but I like things closer).
5241-Z12E - varifocal up to 64mm - anything from 80 feet to almost 200 feet (personally I wouldn't go past 150 feet because I like things closer).
Is...