Thread: SWAROVSKI Z5 2.4-12 x 50

There'd be a justification for both the 3.5-18x44 and the 2.4-12x50. The 2.4-12x50 is an inch shorter, has 29% more objective lens area and should have more depth of focus. As I understand it, side focus parallax adjustment gives the ability to focus perfectly at any given range, but you lose focus more quickly when you move away from the parallax-free distance than you would with a non adjustable scope. Means that the benefit is you have adjustment, and the downside is you have to use it.