Re: optics data

Matteo wrote:

> About optics used on rifle, what does the data numberXnumber mean?
> For example in "Trijicon ACOG 4X32 Day Optic" I suppose that the first "4"
> is the zoom factor, but what about "x32" ?

    It has to do with the light gathering ability.  I think it is the diameter
of the
optic, but don't quote me. The larger the number, the dimmer the light it will

work well.   This is in purely passive devices.

    --Dale