Parallax-free riflescope

[take1a]

This question probably belongs in the Optics section of HuntingNet, but I'm going to put it here as well, so I can try to catch both audiences. Anyone out there have experience with the so-called "parallax-free" riflescopes? Pentax makes some of their scopes parallax-free.

Didn't know it was possible to have a scope, with magnification, but no parallax.

Anyone have any experience with these scopes?

[sabotloader]

take1a

Two thoughts... it is if:
1. you have an adjustable objective lens
2. if you have a fixed power scope.

But in todays world and technology it is almost impossible to sat impossible...