Thread: Small objective lens scopes?

The Leupold 1.5-5x20 has been my preferred bush scope for most of my time hunting. However if you will be swapping around onto a 22LR, with smaller targets, shorter ranges, then maybe quite a number of low-power scopes including the above won't be as suitable, given that zero-parallax distance (and perhaps focus) may come into play and need to be adjustable?