How do I measure distances and sizes of ships, etc. with the Oceana mono...

On the Oceana Monocular (#71212), the vertical and horizontal scales on the reticle are graduated in mils (short for milliradians). One mil is a thousandth of the angular measure known...

How do I measure distances and sizes of ships, etc. with the Oceana mono...

On the Oceana Monocular (#71212), the vertical and horizontal scales on the reticle are graduated in mils (short for milliradians). One mil is a thousandth of the angular measure known...