I've just got a new scope (pilad 8x56L) and am having problems.

I have adjusted the focussing ring so that the reticles are sharp, but anything less than (approx.) 50 feet away is blurred! And if I turn the focussing ring so stuff is in focus, the reticles disappear.

Is this normal? I know this scope is designed for firearms as opposed to air rifles.

Any advice gratefully received.