Im looking at a swaro z6 2.5-15x56mm or a zeiss victory ht 3-12x56mm. Im torn because ive heard the zeiss is brighter in low light which is what im after plus it has a ir and is cheaper. I like the side focus on the swaro and the mag range, but i dont like the cost of the ir version. Which would be better optically and as a good hunting scope most shots will be at or under 500yds, if thats the case do i need a side focus?