Coated, fully coated, multi coated and fully multi coated, sounds like mother dressing me for school on a cold winter day.  But when it comes to rifle scopes, coatings are something different and down right quite spectacular.

In order to get a clear picture, the glass lenses in the rifle scope need to be finely polished. The better the polishing the clearer the picture.  If you have ever purchased an inexpensive rifle scope, increased the magnification and the picture looked grainy, it had poor rough lenses.

Polishing not only makes for a great clear picture, but in fact can make the lens so smooth that rather than let light in, it reflects a good portion of the light out.  So lenses are coated with chemicals and materials to let light in and still keep the image clear and bright.  It may not seem important on a clear bright sunny day, but early in the morning, at dusk or in the shade, getting all the light you can through the scope makes a big difference. 

You’ll see many scopes will be rated for “light transmission”  shown in percentage of how much of the available light is let into the scope and generally ranges from 85% to 95%  Typically the human eye would not be able to differentiate between a rifle scope allowing 91% against one allowing 93% all though the cost difference to manufacture a scope with the extra 2%-3% can add substantially to the price tag.  

So if coating the lens is good, then more coatings should be even better right?  Well in this case, the answer is Absolutely!

Coated lenses, increase light transmission with a single anti-reflective coating on at least one lens surface.

Multi-coated lenses increase light transmission with a multiple anti-reflective coatings on at least one lens surface.

Fully coated lenses increase light transmission with a single anti-reflective coating on all air-to-glass lens surfaces.

Fully multi-coated lenses increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.

We’ll let you guess on which one is the most expensive to produce, but as with everything, a poorly polished, poorly multi coated lens is still just that.